ON-BOARD DIAGNOSTIC SYSTEM MALFUNCTION DETECTION FUNCTION [AY6A-EL, AY6AX-EL]

id0502k1280100

Special Features

• The malfunction diagnostic function detects transaxle malfunctions.
• If a malfunction occurs in the transaxle, it is recorded as a DTC. A DTC can be read by the Mazda Modular Diagnostic System (M-MDS).

DTC 7-Digit Code Definition

• When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the recorded data using a scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following:

ac9wzn00000996

DTC Table

DTC No. | MIL | AT warning light | Definition | Fail-safe | Drive cycle (MIL illuminates) | Self test type*1 | Memory function
--- | --- | --- | --- | --- | --- | --- | ---
P0220:00 | Illuminate | Illuminate | Accelerator pedal position circuit | X | 1 | C | X
P0601:00 | Illuminate | Illuminate | Flash ROM error | X | 1 | C | X
P0603:00 | Illuminate | Illuminate | EEPROM error | X | 1 | C | X
P0604:00 | Illuminate | Illuminate | RAM error | X | 1 | C | X
P0702:00 | Illuminate | Illuminate | Linear solenoid driver electrical | X | 1 | C | X
P0706:00 | Illuminate | Illuminate | TR switch circuit range/performance | X | 1 | C | X
P0707:00 | Illuminate | Illuminate | TR switch circuit low | X | 1 | C | X
P0708:00 | Illuminate | Illuminate | TR switch circuit high | X | 1 | C | X
P0711:00 | Illuminate | Illuminate | TFT sensor circuit range/performance | X | 1 | C | X
P0712:00 | Illuminate | Illuminate | TFT sensor circuit low | X | 1 | C | X
P0713:00 | Illuminate | Illuminate | TFT sensor circuit high | X | 1 | C | X
P0715:00 | Illuminate | Illuminate | Input/turbine speed sensor circuit | X | 1 | C | X
P0717:00 | Illuminate | Illuminate | Input/turbine speed sensor circuit no signal | X | 1 | C | X
P0720:00 | Illuminate | Illuminate | VSS circuit | X | 1 | C | X
P0722:00 | Illuminate | Illuminate | VSS circuit no signal | X | 1 | C | X
P0727:00 | Illuminate | Illuminate | Engine speed input circuit no signal | X | 1 | C | X
P0729:00 | Illuminate | Illuminate | Gear 6 incorrect ratio | X | 2 | C | X
P072D:00 | - | Illuminate | Incorrect gear ratio (1GR with engine brake stuck 2GR/3GR) | X | - | C | X
P0730:00 | Illuminate | Illuminate | Incorrect gear ratio (1GR with engine brake stuck 4GR) | X | 2 | C | X
P0731:00 | Illuminate | Illuminate | Gear 1 incorrect ratio | X | 2 | C | X
P0732:00 | Illuminate | Illuminate | Gear 2 incorrect ratio | X | 2 | C | X
P0733:00 | Illuminate | Illuminate | Gear 3 incorrect ratio | X | 2 | C | X
P0734:00 | Illuminate | Illuminate | Gear 4 incorrect ratio | X | 2 | C | X
P0735:00 | Illuminate | Illuminate | Gear 5 incorrect ratio | X | 2 | C | X
P073F:00 | - | Illuminate | Incorrect Gear Ratio (1GR with engine brake) | X | - | C | X
P074A:00 | - | Illuminate | Gear 2 stuck | X | - | C | X
P074B:00 | - | Illuminate | Gear 3 stuck | X | - | C | X
P074C:00 | - | Illuminate | Gear 4 stuck | X | - | C | X
P074D:00 | - | Illuminate | Gear 5 stuck | X | - | C | X
P074E:00 | - | Illuminate | Gear 6 stuck | X | - | C | X
P0762:00 | Illuminate | Illuminate | Shift solenoid C stuck on | X | 2 | C | X
P0766:00 | Illuminate | Illuminate | Shift solenoid D performance or stuck off | X | 2 | C | X
P0771:00 | Illuminate | Illuminate | Shift solenoid E performance or stuck off | X | 2 | C | X
P0817:00 | - | Illuminate | Starter lock output signal circuit | - | - | C | X
P0819:00 | - | Illuminate | Up and down switch to transaxle range correlation | X | - | C | X
P0867:00 | - | Illuminate | ATF pressure | - | - | C | X
P0882:00 | Illuminate | Illuminate | TCM B+ low | X | 1 | C | X
P0883:00 | Illuminate | Illuminate | TCM B+ high | X | 1 | C | X
P0942:00 | Illuminate | Illuminate | Hydraulic pressure unit (at D position) | X | 2 | C | X
P0961:00 | Illuminate | Illuminate | Line pressure control solenoid circuit range/performance | X | 1 | C | X
P0962:00 | Illuminate | Illuminate | Line pressure control solenoid circuit low | X | 1 | C | X
P0963:00 | Illuminate | Illuminate | Line pressure control solenoid circuit high | X | 1 | C | X
P0973:00 | Illuminate | Illuminate | Shift solenoid A circuit low | X | 1 | C | X
P0974:00 | Illuminate | Illuminate | Shift solenoid A circuit high | X | 1 | C | X
P0976:00 | Illuminate | Illuminate | Shift solenoid B circuit low | X | 1 | C | X
P0977:00 | Illuminate | Illuminate | Shift solenoid B circuit high | X | 1 | C | X
P0978:00 | Illuminate | Illuminate | Shift solenoid C circuit range/performance | X | 1 | C | X
P0979:00 | Illuminate | Illuminate | Shift solenoid C circuit low | X | 1 | C | X
P0980:00 | Illuminate | Illuminate | Shift solenoid C circuit high | X | 1 | C | X
P0981:00 | Illuminate | Illuminate | Shift solenoid D circuit range/performance | X | 1 | C | X
P0982:00 | Illuminate | Illuminate | Shift solenoid D circuit low | X | 1 | C | X
P0983:00 | Illuminate | Illuminate | Shift solenoid D circuit high | X | 1 | C | X
P0984:00 | Illuminate | Illuminate | Shift solenoid E circuit range/performance | X | 1 | C | X
P0985:00 | Illuminate | Illuminate | Shift solenoid E circuit low | X | 1 | C | X
P0986:00 | Illuminate | Illuminate | Shift solenoid E circuit high | X | 1 | C | X
P0997:00 | Illuminate | Illuminate | Shift solenoid F circuit range/performance | X | 1 | C | X
P0998:00 | Illuminate | Illuminate | Shift solenoid F circuit low | X | 1 | C | X
P0999:00 | Illuminate | Illuminate | Shift solenoid F circuit high | X | 1 | C | X
P1700:00 | - | Illuminate | Hydraulic pressure unit (at R position) | X | - | C | X
P1719:00 | - | - | Engine torque signal error (inaccurate signal) | X | - | C | X
P1738:00 | - | Illuminate | Shift control solenoid component malfunction | X | - | C | X
P1783:00 | - | - | ATF high oil temperature malfunction | X | - | C | X
P1919:00 | - | - | Engine coolant temperature signal error | X | - | C | X
P2544:00 | Illuminate | Illuminate | Engine torque signal error (invalid signal) | X | 1 | C | X
P2708:00 | Illuminate | Illuminate | Shift solenoid F stuck on | X | 2 | C | X
P2757:00 | Illuminate | Illuminate | TCC control solenoid circuit performance or stuck off | X | 2 | C | X
P2762:00 | Illuminate | Illuminate | TCC control solenoid range/performance | X | 1 | C | X
P2763:00 | Illuminate | Illuminate | TCC control solenoid circuit high | X | 1 | C | X
P2764:00 | Illuminate | Illuminate | TCC control solenoid circuit low | X | 1 | C | X
P2806:00 | - | Illuminate | Neutral position learning (Not performed yet) | X | - | C | X
U0073:00 | Illuminate | Illuminate | Control module communication bus off | X | 1 | C | X
U0100:00 | Illuminate | Illuminate | Lost communication with PCM | X | 1 | C | X
U0121:00 | - | Illuminate | Lost communication with DSC/RSC HU/CM | X | - | C | X
U0155:00 | - | - | Lost communication with instrument cluster | X | - | C | X
U0415:00 | - | - | Invalid data received from DSC/RSC HU/CM | X | - | C | X

*1 :C; CMDTC self-test

DTC Separate Detection Condition

DTC No. | Definition | Detection condition
--- | --- | ---
P0220:00 | Accelerator pedal position circuit | • Conditions: TCM communication normal • Circumstances: Accelerator pedal position signal abnormality detected • Time period: Determined after 1 times
P0601:00 | Flash ROM error | • Conditions: Ignition switch ON • Circumstances: Internal abnormality detected by flash ROM • Time period: Determined after 1 time
P0603:00 | EEPROM error | • Conditions: Ignition switch ON • Circumstances: Different values detected for EEPROM and RAM • Time period: Determined after 1 time
P0604:00 | RAM error | • Conditions: Ignition switch ON • Circumstances: RAM reading or writing error detected • Time period: Determined after 1 time
P0702:00 | Linear solenoid driver electrical | • Conditions: TCM communication normal • Circumstances: Inappropriate current for solenoid current command value detected • Time period: Determined after 5 consecutive times lasting 0.08 or more seconds
P0706:00 | TR switch circuit range/performance | • Conditions: Battery voltage is normal • Circumstances: TR switch stuck detected • Time period: Determined after 2 consecutive times lasting 0.1 or more seconds
P0707:00 | TR switch circuit low | • Conditions: Battery voltage is normal • Circumstances: TR switch voltage below 0.127V detected • Time period: Determined after 2 consecutive times lasting 0.1 or more seconds
P0708:00 | TR switch circuit high | • Conditions: Battery voltage is normal • Circumstances: TR switch voltage above 4.84V detected • Time period: Determined after 2 consecutive times lasting 0.1 or more seconds
P0711:00 | TFT sensor circuit range/performance | • Stuck low temperature ― Conditions: Engine running, driving in D position ― Circumstances: ATF temperature does not change ― Time period: Determined after 1 time lasting 10 minutes • Stuck high temperature ― Conditions: After 6 hours or more from Engine Off, TCM communication normal ― Circumstances: ATF temperature of 125 °C {257 °F} or above detected ― Time period: Determined after 1 time
P0712:00 | TFT sensor circuit low | • Conditions: TCM communication normal • Circumstances: ATF temperature of 200 °C {392 °F} or above detected • Time period: Determined after 6 times lasting 10 or more seconds
P0713:00 | TFT sensor circuit high | • Conditions: Engine warmed-up and running, TCM communication normal • Circumstances: ATF temperature of below -55 °C {-67 °F} detected • Time period: Determined after 12 times lasting 1 or more seconds
P0715:00 | Input/turbine speed sensor circuit | • Conditions: TCM communication normal • Circumstances: Normal Input/turbine speed sensor signal not input • Time period: Determined after 10 times lasting 0.1 or more seconds
P0717:00 | Input/turbine speed sensor circuit no signal | • Conditions: Engine running, TCM communication normal, driving in D position, vehicle speed over 20 km/h {12 mph} • Circumstances: Input/turbine speed sensor signal not input with VSS 24 pulse • Time period: Determined after 500 consecutive times
P0720:00 | VSS circuit | • Conditions: TCM communication normal • Circumstances: Normal VSS signal not input • Time period: Determined after 10 times lasting 0.1 or more seconds
P0722:00 | VSS circuit no signal | • Conditions: Engine running, TCM communication normal, driving in D position, vehicle speed over 20 km/h {12 mph} • Circumstances: VSS signal not input with input/turbine speed sensor 16 pulse • Time period: Determined after 500 consecutive times
P0727:00 | Engine speed input circuit no signal | • Conditions: TCM communication normal • Circumstances: Engine speed signal abnormality detected • Time period: Determined after 1 times
P0729:00 | Gear 6 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 6GR • Circumstances: Not in 6GR ratio detected • Time period: Determined after 12 times lasting 1 or more seconds
P072D:00 | Incorrect gear ratio (1GR with engine brake stuck 2GR/3GR) | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in manual mode, 1GR • Circumstances: Not 1st engine brake detected • Time period: Determined after 5 times lasting 0.5 or more seconds
P0730:00 | Incorrect gear ratio (1GR with engine brake stuck 4GR) | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in manual mode, 1GR • Circumstances: Not 1st engine brake detected • Time period: Determined after 12 times lasting 1 or more seconds
P0731:00 | Gear 1 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 1GR • Circumstances: Not in 1GR ratio detected • Time period: Determined after 5 times lasting 0.5 or more seconds
P0732:00 | Gear 2 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 2GR • Circumstances: Not in 2GR ratio detected • Time period: Determined after 12 times lasting 1 or more seconds
P0733:00 | Gear 3 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 3GR • Circumstances: Not in 3GR ratio detected • Time period: Determined after 12 times lasting 1 or more seconds
P0734:00 | Gear 4 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 4GR • Circumstances: Not in 4GR ratio detected • Time period: Determined after 12 times lasting 1 or more seconds
P0735:00 | Gear 5 incorrect ratio | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 5GR • Circumstances: Not in 5GR ratio detected • Time period: Determined after 12 times lasting 1 or more seconds
P073F:00 | Incorrect Gear Ratio (1GR with engine brake) | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in manual mode, 1GR • Circumstances: Not 1st engine brake detected • Time period: Determined after 12 times lasting 1 or more seconds
P074A:00 | Gear 2 stuck | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 2GR • Circumstances: Not in 2GR ratio detected • Time period: Determined after 5 times lasting 1 or more seconds
P074B:00 | Gear 3 stuck | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 3GR • Circumstances: Not in 3GR ratio detected • Time period: Determined after 5 times lasting 1 or more seconds
P074C:00 | Gear 4 stuck | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 4GR • Circumstances: Not in 4GR ratio detected • Time period: Determined after 5 times lasting 1 or more seconds
P074D:00 | Gear 5 stuck | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 5GR • Circumstances: Not in 5GR ratio detected • Time period: Determined after 5 times lasting 1 or more seconds
P074E:00 | Gear 6 stuck | • Conditions: ATF temperature 20 °C {68 °F} or more, speed sensor normal, TCM communication normal, accelerator pedal position 10% or more, driving in D position, 6GR • Circumstances: Not in 6GR ratio detected • Time period: Determined after 5 times lasting 1 or more seconds
P0762:00 | Shift solenoid C stuck on | • Conditions: ATF temperature -20 °C {68 °F} or more, TCM communication normal, driving in D position, output VSS rotation 300 rpm or more (wheel not spinning) • Circumstances: Abnormal shifting detected • Time period: Determined after 5 times
P0766:00 | Shift solenoid D performance or stuck off | • Conditions: ATF temperature -20 °C {68 °F} or more, TCM communication normal, driving in D position, output VSS rotation 300 rpm or more (wheel not spinning) • Circumstances: Abnormal shifting detected • Time period: Determined after 5 times
P0771:00 | Shift solenoid E performance or stuck off | • Conditions: ATF temperature -20 °C {68 °F} or more, TCM communication normal, driving in D position, output VSS rotation 300 rpm or more (wheel not spinning) • Circumstances: Abnormal shifting detected • Time period: Determined after 5 times
P0817:00 | Starter lock output signal circuit | • B+ short ― Conditions: Ignition switch ON, TCM communication normal, in D or R position ― Circumstances: 0V detected for start lock output voltage ― Time period: Determined after 2 times lasting 0.1 or more seconds • GND short / open ― Conditions: Ignition switch ON, TCM communication normal, in P or N position ― Circumstances: 12V detected for start lock output voltage ― Time period: Determined after 2 times lasting 0.1 or more seconds
P0819:00 | Up and down switch to transaxle range correlation | • Conditions: Engine running and TCM communication normal • Circumstances: M position (5V) signal is detected with the shift lever in a position except D position, or M position (0V) signal is detected when the shift lever is in the UP or DOWN position • Time period: Determined after 1 times lasting 10 or more seconds
P0867:00 | ATF pressure | • Conditions: In D position, VSS rotation 500rpm or below, ATF temperature 0 °C or more, Not shifting, 1GR, 2GR, 3GR or 4GR • Circumstances: Difference between engine speed and Input/turbine speed sensor rotation below 150rpm, not in 1GR detected, input revolution > output revolution × 1GR ratio + 400rpm • Time period: Determined C1 and C2 clutch not engaged after 1 times lasting 0.1 or more continuous
P0882:00 | TCM B+ low | • Conditions: Engine idling and TCM communication normal • Circumstances: Ignition terminal voltage under 9V detected • Time period: Determined after 20 times lasting 1 or more seconds
P0883:00 | TCM B+ high | • Conditions: Engine idling and TCM communication normal • Circumstances: Ignition terminal voltage 18V or more detected • Time period: Determined after 5 times lasting 1 or more seconds
P0942:00 | Hydraulic pressure unit (at D position) | • Conditions: In D position, VSS rotation 500rpm or below • Circumstances: Difference between engine rotation and Input/turbine speed sensor rotation below 150rpm, not in 1GR detected • Time period: Determined after 1 times lasting 0.8 or more seconds
P0961:00 | Line pressure control solenoid circuit range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P0962:00 | Line pressure control solenoid circuit low | • Conditions: TCM communication normal • Circumstances: line pressure control solenoid system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0963:00 | Line pressure control solenoid circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between line pressure control solenoid and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0973:00 | Shift solenoid A circuit low | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid A and GND systems detected • Time period: Determined after 5 times lasting 0.1 or more seconds
P0974:00 | Shift solenoid A circuit high | • Conditions: TCM communication normal • Circumstances: Shift solenoid A system disconnection or short circuit detected • Time period: Determined after 5 times lasting 0.1 or more seconds
P0976:00 | Shift solenoid B circuit low | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid B and GND systems detected • Time period: Determined after 5 times lasting 0.1 or more seconds
P0977:00 | Shift solenoid B circuit high | • Conditions: TCM communication normal • Circumstances: Shift solenoid B system disconnection or short circuit detected • Time period: Determined after 5 times lasting 0.1 or more seconds
P0978:00 | Shift solenoid C circuit range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P0979:00 | Shift solenoid C circuit low | • Conditions: TCM communication normal • Circumstances: Shift solenoid C system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0980:00 | Shift solenoid C circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid C and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0981:00 | Shift solenoid D circuit range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P0982:00 | Shift solenoid D circuit low | • Conditions: TCM communication normal • Circumstances: Shift solenoid D system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0983:00 | Shift solenoid D circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid D and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0984:00 | Shift solenoid E circuit range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P0985:00 | Shift solenoid E circuit low | • Conditions: TCM communication normal • Circumstances: Shift solenoid E system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0986:00 | Shift solenoid E circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid E and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0997:00 | Shift solenoid F circuit range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P0998:00 | Shift solenoid F circuit low | • Conditions: TCM communication normal • Circumstances: Shift solenoid F system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P0999:00 | Shift solenoid F circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between shift solenoid F and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P1700:00 | Hydraulic pressure unit (at R position) | • Conditions: In R position, VSS rotation 500rpm or below • Circumstances: Difference between engine and Input/turbine speed sensor rotations below 150rpm, not in reverse gear detected • Time period: Determined after 1 times lasting 0.8 or more seconds
P1719:00 | Engine torque signal error (inaccurate signal) | • Conditions: TCM communication normal • Circumstances: Engine torque signal abnormality detected • Time period: Determined after 275 times lasting 0.02 seconds
P1738:00 | Shift control solenoid component malfunction | • Conditions: ATF temperature -20 °C {68 °F} or more, TCM communication normal, driving in D position, output VSS rotation 300 rpm or more (wheel not spinning) • Circumstances: Abnormal shifting detected • Time period: Determined after 5 times
P1783:00 | ATF high oil temperature malfunction | • Conditions: Engine speed < 800 rpm and TCM communication normal • Circumstances: ATF temperature of 150 °C {302 °F} or above detected • Time period: Determined after 1 time lasting 12 seconds
P1919:00 | Engine coolant temperature signal error | • Conditions: TCM communication normal • Circumstances: Engine coolant temperature signal abnormality detected • Time period: Determined after 1 times
P2544:00 | Engine torque signal error (invalid signal) | • Conditions: TCM communication normal • Circumstances: Engine torque signal abnormality detected • Time period: Determined after 1 times
P2708:00 | Shift solenoid F stuck on | • Conditions: ATF temperature -20 °C {68 °F} or more, TCM communication normal, driving in D position, output VSS rotation 300 rpm or more (wheel not spinning) • Circumstances: Abnormal shifting detected • Time period: Determined after 5 times
P2757:00 | TCC control solenoid circuit performance or stuck off | • Conditions: TCC control solenoid normal, TCC control solenoid ON command, ATF temperature 20 °C {68 °F} or more, TCM communication normal, driving in D position • Circumstances: Difference between engine and input/turbine speed sensor rotations 100rpm or above detected • Time period: Determined after 6 times lasting 2 or more seconds
P2762:00 | TCC control solenoid range/performance | • Conditions: TCM communication normal • Circumstances: Inappropriate feedback current for solenoid current command value detected • Time period: Determined after lasting 2 or more seconds
P2763:00 | TCC control solenoid circuit high | • Conditions: TCM communication normal • Circumstances: Short circuit between TCC control solenoid and power systems detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P2764:00 | TCC control solenoid circuit low | • Conditions: TCM communication normal • Circumstances: TCC control solenoid system disconnection or short circuit to GND detected • Time period: Determined after 5 consecutive times lasting 0.1 or more seconds
P2806:00 | Neutral position learning (Not performed yet) | • Conditions: Diagnosis tester request “N position adaptation” • Circumstances: “N position adaptation” not performed • Time period: Determined after 1 time
U0073:00 | Control module communication bus off | • Conditions: TCM communication normal • Circumstances: Bus off abnormality detected • Time period: Determined with CAN-Mute 400msec (1 time)
U0100:00 | Lost communication with PCM | • Conditions: TCM communication normal • Circumstances: PCM communication abnormality detected • Time period: Determined after 2 consecutive times
U0121:00 | Lost communication with DSC/RSC HU/CM | • Conditions: TCM communication normal • Circumstances: DSC/RSC HU/CM communication abnormality detected • Time period: Determined after 2 consecutive times
U0155:00 | Lost communication with instrument cluster | • Conditions: TCM communication normal • Circumstances: Instrument cluster communication abnormality detected • Time period: Determined after 2 consecutive times
U0415:00 | Invalid data received from DSC/RSC HU/CM | • Conditions: TCM communication normal • Circumstances: Each wheel speed abnormality detected • Time period: Determined after 1 times

Drive Cycle

Definition

  • The drive cycle is the period of time from when the ignition is switched ON to the next time the ignition is switched ON.
  • If all of the following drive cycle conditions are met, drive cycle switching is performed.
  • If any one of the following drive cycle conditions is not met, drive cycle switching is not performed and the previous drive cycle is continued.
  • Drive cycle switching is performed only one time during the ignition switch cycle (ignition switch ON—ignition switch OFF).
  • To detect DTCs, a required number of drive cycles for pre-detection has been set. For the number of drive cycles required for detection, refer to the DTC table.

Drive cycle conditions

  • When all of the following conditions are met, a drive cycle is established.
    ― Ignition switched ON
    ― Record of engine speed increase at previous ignition switch cycle (ignition switch ON—ignition switch OFF)

Record of engine speed increase

  • If all of the following conditions are met at the ignition switch cycle (ignition switch ON—ignition switch OFF), there is a record of engine speed increase.
    ― Engine speed is 500 rpm or more
    ― Engine speed signal related DTC not recorded
    ― CAN related DTC not recorded
    ― ROM related DTC not recorded

Drive cycle switching timing

ac9uun00000846

Pending Code

• The pending code is temporary malfunction code which differs from DTCs which are recorded when the TCM detects a transaxle malfunction.
• DTCs are recorded in the TCM according to the number of drive cycles when the TCM detects a transaxle malfunction. At the same time, pending code is recorded in the TCM regardless of the number of drive cycles.
• Pending code recorded in the TCM is erased from the TCM, from the next drive cycle, when the TCM determines that the transaxle is normal.

Status Byte for DTC

• The status byte is the two digits (two digits after hyphen (-)) after the seven-digit DTC.

am5uun00000323

• The status byte is a code which indicates the pending code, current/past malfunction status, or warning illumination status.
• The status byte can be read by performing a CMDTC self-test using the Mazda Modular Diagnostic System (M-MDS).
• For details on the status byte, refer to the explanation on the M-MDS when reading the DTC.

Self-Test Function

• When the self-test is implemented, the TCM performs diagnosis of the transaxle control system. If a malfunction is detected with the results of the diagnosis, an applicable DTC is recorded. A recorded DTC can be read by the Mazda Modular Diagnostic System (M-MDS).
• By implementing the self-test function, verification of the current malfunction and verification after repair is facilitated.

CMDTC (Continuous Memory Diagnostic Trouble Code) self-test

  • The CMDTC self-test is a function which reads all DTCs recorded in the TCM after the previous DTCs are erased no matter whether they are past malfunctions or current malfunctions.

Freeze Frame Data

Freeze frame data
• The freeze frame data consists of data for vehicle and transaxle control system operation conditions when malfunctions in the transaxle control system are detected and stored in the TCM.
• Freeze frame data is stored at the instant the malfunction indicator lamp illuminates, and only a part of the DTC data is stored.
Snap shot data
• The data for all DTCs currently detected is stored.
• Recorded DTC timing

  ― For DTCs with one drive cycle, data is recorded during the malfunction determination period.
  ― For DTCs with two drive cycles, data is recorded during both non-determination (1st diagnosis) and malfunction determination (2nd diagnosis) periods.

Freeze frame data table

Freeze frame data item | Unit | Data contents | Corresponding data monitor items
--- | --- | --- | ---
LOAD | % | Charging efficiency | LOAD
ECT | °C {°F} | Engine coolant temperature | ECT
RPM | RPM | Engine speed | RPM
VS | KPH {MPH} | Vehicle speed | VSS
TP | % | Throttle position sensor | THOP
RUNTM | hh:mm:ss | Time since engine start | —
VPWR | V | Power supply voltage | VPWR

Snap shot data table

Snap shot data item | Unit | Data contents | Corresponding data monitor items
--- | --- | --- | ---
LOAD | % | Charging efficiency | LOAD
ECT | °C {°F} | Engine coolant temperature | ECT
RPM | RPM | Engine speed | RPM
VSS | KPH {MPH} | Vehicle speed | VSS
TP1 | % | Throttle position sensor | THOP
EG_RUN_TIME | hh:mm:ss | Time since engine start | —
VPWR | V | Power supply voltage | VPWR