ON-BOARD DIAGNOSTIC SYSTEM MALFUNCTION DETECTION FUNCTION [FS5A-EL]SM1935079
ON-BOARD DIAGNOSTIC SYSTEM MALFUNCTION DETECTION FUNCTION [FS5A-EL]

id050221280100


Function

• In the malfunction detection function, the TCM detects malfunctions in the transaxle while driving.
• When vehicle driving conditions correspond with a preset malfunction detection condition, the TCM determines that the transaxle has a malfunction and stores the corresponding DTC.
• When a malfunction is detected, stored DTCs can be retrieved using the scan tool connected to the DLC-2.

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 store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.
acxuun00001152

DTC Table

DTC No.

Definition

MIL

AT warning light

Drive cycle

Pending code

Freeze frame data

P0706:00
TR switch circuit range/performance
Illuminate
Illuminate
2
Available
Available
P0707:00
TR switch circuit low input
Illuminate
Illuminate
1
Available
Available
P0708:00
TR switch circuit high input
Illuminate
Illuminate
1
Available
Available
P0711:00
TFT sensor circuit range/performance
Illuminate
-
2
Available
Available
P0712:00
TFT sensor circuit low input
Illuminate
Illuminate
1
Available
Available
P0713:00
TFT sensor circuit high input
Illuminate
Illuminate
2
Available
Available
P0715:00
Input/turbine speed sensor circuit malfunction
Illuminate
Illuminate
1
Available
Available
P0720:00
VSS circuit malfunction
Illuminate
Illuminate
1
Available
Available
P0731:00
Gear 1 incorrect ratio
-
Illuminate
1
-
-
P0732:00
Gear 2 incorrect ratio
-
Illuminate
1
-
-
P0733:00
Gear 3 incorrect ratio
-
Illuminate
1
-
-
P0734:00
Gear 4 incorrect ratio
-
Illuminate
1
-
-
P0735:00
Gear 5 incorrect ratio
-
Illuminate
1
-
-
P0741:00
TCC stuck off
-
Illuminate
1
-
-
P0742:00
TCC stuck on
-
Illuminate
1
-
-
P0744:00
TCC slip control malfunction
-
Illuminate
2
-
-
P0745:00
Pressure control solenoid A malfunction
-
Illuminate
1
-
-
P0751:00
Shift solenoid A stuck off
Illuminate
Illuminate
2
Available
Available
P0752:00
Shift solenoid A stuck on
Illuminate
Illuminate
2
Available
Available
P0753:00
Shift solenoid A electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0756:00
Shift solenoid B stuck off
Illuminate
Illuminate
2
Available
Available
P0757:00
Shift solenoid B stuck on
Illuminate
Illuminate
2
Available
Available
P0758:00
Shift solenoid B electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0761:00
Shift solenoid C stuck off
Illuminate
Illuminate
2
Available
Available
P0762:00
Shift solenoid C stuck on
Illuminate
Illuminate
2
Available
Available
P0763:00
Shift solenoid C electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0766:00
Shift solenoid D stuck off
Illuminate
Illuminate
2
Available
Available
P0767:00
Shift solenoid D stuck on
Illuminate
Illuminate
2
Available
Available
P0768:00
Shift solenoid D electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0771:00
Shift solenoid E stuck off
Illuminate
Illuminate
2
Available
Available
P0772:00
Shift solenoid E stuck on
Illuminate
Illuminate
2
Available
Available
P0773:00
Shift solenoid E electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0777:00
Pressure control solenoid B stuck on
Illuminate
Illuminate
2
Available
Available
P0778:00
Pressure control solenoid B electrical malfunction
Illuminate
Illuminate
1
Available
Available
P0791:00
Intermediate sensor circuit malfunction
Illuminate
Illuminate
1
Available
Available
P0841:00
Oil pressure switch circuit malfunction
-
-
2
-
-
P0882:00
Battery back-up voltage low
Illuminate
-
1
Available
Available
P0883:00
Battery voltage high
Illuminate
Illuminate
1
Available
Available
P0884:00
Battery voltage low
Illuminate
Illuminate
1
Available
Available
P0894:00
Transaxle component slipping
-
Illuminate
1
-
-
P1783:00
ATF high oil temperature malfunction
-
Illuminate
1
-
-
P2707:00
Shift solenoid F stuck off
Illuminate
Illuminate
2
Available
Available
P2708:00
Shift solenoid F stuck on
Illuminate
Illuminate
2
Available
Available
P2709:00
Shift solenoid F electrical malfunction
Illuminate
Illuminate
1
Available
Available
U0073:00
Control module communication bus off
-
Illuminate
1
-
-
U0100:00
Lost communication with PCM
Illuminate
Illuminate
1
Available
Available
U0121:00
Lost communication with DSC HU/CM
-
Illuminate
1
-
-
U0401:00
Invalid data received from PCM
-
-
1
-
-
U0415:00
Invalid data received from DSC HU/CM
-
-
1
-
-


DTC Detection Condition

DTC No.

Definition

Detection condition

P0706:00
TR switch circuit range/performance
• The TCM detects no position/range signal for 100 s when the following conditions are met.
― Vehicle speed: more than 20 km/h {12 mph}
― Input voltage from the TR switch: 0.49—4.78 V
P0707:00
TR switch circuit low input
• The TCM detects that input voltage from the TR switch is less than 0.49 V for 5 s when the following condition is met.
― Input voltage from the battery: more than 9 V
P0708:00
TR switch circuit high input
• The TCM detects that input voltage from the TR switch is more than 4.78 V for 5 s when the following conditions are met.
― Vehicle speed: more than 8 km/h {5 mph}
― Input voltage from the battery: more than 9 V
P0711:00
TFT sensor circuit range/performance
• The TCM detects a difference between the actual ATF temperature and the ATF temperature when the engine is started of less than 2.77 °C {37.0 °F} for 300 s, when the following conditions are met.
― After cold engine start
― ATF temperature: less than 40 °C {104 °F}
― Input voltage from the TFT sensor: less than 4.66 V
― Vehicle speed: 5 km/h {3 mph} or more
• The TCM detects an ATF temperature of 130 °C {266 °F} or more for 5 s when the following conditions are met.
― After cold engine start
― Input voltage from the TFT sensor: more than 0.12 V
P0712:00
TFT sensor circuit low input
• The TCM detects that input voltage from the TFT sensor is less than 0.12 V for 150 s.
P0713:00
TFT sensor circuit high input
• The TCM detects that input voltage from the TFT sensor is more than 4.66 V for 5 s when the following conditions are met.
― Input voltage from the battery: more than 9 V
― Intake air temperature: more than -31 °C{-24 °F}
― IAT sensor circuit malfunction: not stored
P0715:00
Input/turbine speed sensor circuit malfunction
• The TCM detects no signal from the input/turbine speed sensor at vehicle speed 41 km/h {25 mph} or more.
P0720:00
VSS circuit malfunction
• The TCM detects no signal from the VSS for 5 s when the following conditions are met.
― Engine coolant temperature: more than 60 °C {140 °F}
― D or M range
― Intermediate speed: more than 1,500 rpm
P0731:00
Gear 1 incorrect ratio
• The TCM detects that revolution ratio of the input revolution to output revolution is less than 2.157 four times when the following conditions are met.
― 1GR
― Throttle opening angle: 4.76% or more
P0732:00
Gear 2 incorrect ratio
• The TCM detects that revolution ratio of the input revolution to output revolution in 2GR is more than 2.157 or less than 1.249 three times.
P0733:00
Gear 3 incorrect ratio
• The TCM detects that revolution ratio of the input revolution to output revolution in 3GR is more than 2.157.
• The TCM detects that revolution ratio of the input revolution to output revolution is between 1.344—1.644 when the following conditions are met.
― 3GR
― Vehicle speed: more than 21 km/h {13 mph}
― TCC operation: Off
• The TCM detects that revolution ratio of the input revolution to output revolution is less than 0.863 when the following conditions are met.
― 3GR
― Vehicle speed: more than 49 km/h {30 mph}
― TCC operation: Off
P0734:00
Gear 4 incorrect ratio
• The TCM detects that revolution ratio of the input revolution to output revolution is more than 1.249 or less than 0.6 when the following conditions are met.
― 4GR
― Vehicle speed: more than 35 km/h {22 mph}
• The TCM detects that revolution ratio of the input revolution to output revolution is between 0.91—1.09 when the following conditions are met.
― 4GR
― Vehicle speed: more than 46 km/h {29 mph}
― TCC operation: Off
P0735:00
Gear 5 incorrect ratio
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 3GR or 4GR is less than 1.11 when the following condition is met.
― Throttle opening angle: 4.76% or more
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 5GR is more than 1.11 when the following condition is met.
― Throttle opening angle: 4.76% or more
P0741:00
TCC stuck off
• The TCM detects that difference between the engine speed and input shaft speed is more than 100 rpm when the following conditions are met.
― 4GR
― Vehicle speed: 60—100 km/h {38.0—62.1 mph}
― TCC operation: On
― Shift solenoid A duty ratio: more than 99.2%
P0742:00
TCC stuck on
• The TCM detects that difference between the engine speed and input shaft speed is less than 50 rpm when the following conditions are met.
― 4GR
― Throttle opening angle: 3.125—10.2%
― Vehicle speed: more than 70 km/h {43 mph}
― TCC operation: Off
P0744:00
TCC slip control malfunction
• The TCM detects that revolution ratio of the input shaft speed to intermediate revolution is 1.09 or more, or 0.91 or less when the following conditions are met.
― 3GR
― TCC slip control: On
• The TCM detects that revolution ratio of the input shaft speed to intermediate revolution is 0.817 or more, or 0.636 or less when the following conditions are met.
― 4GR or 5GR
― TCC slip control: On
P0745:00
Pressure control solenoid A malfunction
• The TCM detects that output voltage to the pressure control solenoid A is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0751:00
Shift solenoid A stuck off
• The TCM detects that revolution ratio of the input revolution to output revolution is between 0.91—1.09 when the following conditions are met.
― 4GR
― Vehicle speed: more than 46 km/h {29 mph}
― TCC operation: Off
P0752:00
Shift solenoid A stuck on
• The TCM detects that turbine revolution is more than 187.5 rpm with the vehicle stopped in D range.
P0753:00
Shift solenoid A electrical malfunction
• The TCM detects that output voltage to the shift solenoid A is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0756:00
Shift solenoid B stuck off
• The TCM detects that revolution ratio of the input revolution to output revolution is less than 2.157 four times when the following conditions are met.
― D range
― 1GR
― Throttle opening angle: 4.76% or more
P0757:00
Shift solenoid B stuck on
• The TCM detects that revolution ratio of the input revolution to output revolution in 2GR is more than 2.157 or less than 1.249 three times.
• The TCM detects that revolution ratio of the input revolution to output revolution is more than 1.249 or less than 0.6 when the following conditions are met.
― 4GR
― Vehicle speed: more than 35 km/h {22 mph}
P0758:00
Shift solenoid B electrical malfunction
• The TCM detects that output voltage to the shift solenoid B is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0761:00
Shift solenoid C stuck off
• The TCM detects that revolution ratio of the input revolution to output revolution in 1GR is less than 2.157.
• The TCM detects that revolution ratio of the input revolution to output revolution in 2GR is more than 2.157 or less than 1.249.
P0762:00
Shift solenoid C stuck on
• The TCM detects that revolution ratio of the input revolution to output revolution is between 1.344—1.644 when the following conditions are met.
― 3GR
― Vehicle speed: more than 21 km/h {13 mph}
― TCC operation: Off
P0763:00
Shift solenoid C electrical malfunction
• The TCM detects that output voltage to the shift solenoid C is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0766:00
Shift solenoid D stuck off
• The TCM detects that revolution ratio of the input revolution to output revolution is more than 1.249 or less than 0.6 when the following conditions are met.
― 4GR
― Vehicle speed: more than 35 km/h {22 mph}
P0767:00
Shift solenoid D stuck on
• The TCM detects that revolution ratio of the input revolution to output revolution is less than 0.863 when the following conditions are met.
― 3GR
― Vehicle speed: more than 49 km/h {30 mph}
― TCC operation: Off
P0768:00
Shift solenoid D electrical malfunction
• The TCM detects that output voltage to the shift solenoid D is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0771:00
Shift solenoid E stuck off
• The TCM detects that difference between the engine revolution and turbine revolution is more than 100 rpm when the following conditions are met.
― D range
― 4GR
― TCC operation: On
P0772:00
Shift solenoid E stuck on
• The TCM detects that difference between the engine revolution and turbine revolution is less than 50 rpm when the following conditions are met.
― D range
― 4GR
― TCC operation: Off
P0773:00
Shift solenoid E electrical malfunction
• The TCM detects that output voltage to the shift solenoid E is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0777:00
Pressure control solenoid B stuck on
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 5GR is more than 1.11.
P0778:00
Pressure control solenoid B electrical malfunction
• The TCM detects that output voltage to the pressure control solenoid B is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
P0791:00
Intermediate sensor circuit malfunction
• The TCM detects no signal from the intermediate sensor at vehicle speed 40 km/h {25 mph} or more.
P0841:00
Oil pressure switch circuit malfunction
• The TCM detects no signal from the oil pressure switch when the following conditions are met.
― 1GR, 2GR or 3GR
― Revolution ratio of the input revolution to output revolution: 0.91—3.078
• The TCM detects input signal from the oil pressure switch when the following conditions are met.
― 4GR or 5GR
― Revolution ratio of the input revolution to output revolution: 0.636—0.816
P0882:00
Battery back-up voltage low
• The TCM detects that battery back-up voltage is less than 2.5 V for 2 s.
P0883:00
Battery voltage high
• The TCM detects that battery voltage is more than 16.02 V for 5 s.
P0884:00
Battery voltage low
• The TCM detects that battery voltage is less than 8.25 V when ATF temperature is 90 °C {194 °F} or less at engine speed 500 rpm or more for 10 s.
P0894:00
Transaxle component slipping
• The TCM detects that turbine revolution is more than 187 rpm when the following conditions are met.
― Vehicle stopped (brake pedal is depressed)
― Accelerator pedal is fully released
― Engine running at idle
― Selector lever position moved to D range from N position
P1783:00
ATF high oil temperature malfunction
• The TCM detects that ATF temperature is more than 149.5 °C {301.1 °F} when the following conditions are met.
― TFT sensor circuit malfunction: not stored
― Input voltage from the TFT sensor is more than 0.12 V
P2707:00
Shift solenoid F stuck off
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 3GR is less than 1.11 when the following condition is met.
― Throttle opening angle: 4.76% or more
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 4GR is less than 1.11 when the following condition is met.
― Throttle opening angle: 4.76% or more
P2708:00
Shift solenoid F stuck on
• The TCM detects that revolution ratio of the intermediate revolution to output revolution in 5GR is more than 1.11 when the following condition is met.
― Throttle opening angle: 4.76% or more
P2709:00
Shift solenoid F electrical malfunction
• The TCM detects that output voltage to the shift solenoid F is stuck at 0 V or B+ when the solenoid valve operates according to TCM calculation.
U0073:00
Control module communication bus off
• The CAN controller damaged.
U0100:00
Lost communication with PCM
• The TCM cannot receive any signals from the PCM.
U0121:00
Lost communication with DSC HU/CM
• The TCM cannot receive any signals from the DSC HU/CM.
U0401:00
Invalid data received from PCM
• Irregular input signals input from the PCM.
U0415:00
Invalid data received from DSC HU/CM
• Irregular input signals input from the DSC HU/CM.


KOEO/KOER Self-test

• On-board diagnosis is performed using the flow pre-set in the TCM, and according to the test execute command sent to the TCM from the external tester.
• If a malfunction is detected as a result of the on-board diagnosis, a DTC is recorded in the TCM.
• Refer to the self test table for DTCs corresponding to the self test function.

KOEO (Key ON, Engine Off) self-test

• The KOEO self test is a powertrain control system self-diagnosis, performed when the ignition is switched to ON and the engine is stopped. A KOEO self test begins when the connected M-MDS sends an execute command to the TCM.
• As the KOEO self test is performed, the TCM performs the inspection for set DTCs and if a malfunction is detected, the DTC is displayed on the M-MDS.


KOER (Key ON, Engine Running) self-test

• The KOER self test is a powertrain control system self-diagnosis, performed when the ignition is switched to ON and the engine is idling. A KOER self test begins when the connected M-MDS sends an execute command to the TCM.
• As the KOER self test is performed, the TCM performs the inspection for set DTCs and if a malfunction is detected the DTC is displayed on the M-MDS.


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.
Snapshot data
• The snap shot data stores the currently detected DTC data.
• The recording timing for the freeze frame data/snap shot data differs depending on the number of DTC drive cycles.
― For a DTC with a drive cycle number 1, only the malfunction determination data is recorded.
― For a DTC with a drive cycle number 2, both the malfunction determination and undetermined data is recorded.

Freeze frame data table

Freeze frame data item

Unit

Description

Corresponding PID data monitor item

LOAD
%
Calculated engine load
ECT
°C {°F}
Engine coolant temperature
ECT
RPM
RPM
Engine speed
RPM
VS
KPH {MPH.EN_UK}
Vehicle speed
VSS
SPARKADV
°
Ignition timing
IAT
°C {°F}
Intake air temperature
TP
%
Throttle valve position No.1
THOP
RUNTM
hh:mm:ss
Time from engine start
WARMUPS
Number of warm-up cycle after DTC cleared
CLRDIST
Km {MILE.EN_UK}
Mileage after DTC cleared
VPWR
V
Module supply voltage
VPWR
APP_D
%
Accelerator pedal position No.1

Snapshot data table

Snapshot data item

Unit

Definition

Corresponding PID data monitor item

LOAD
%
Calculated engine load
ECT
°C {°F}
Engine coolant temperature
ECT
RPM
RPM
Engine speed
RPM
VSS
KPH {MPH.EN_UK}
Vehicle speed
VSS
SPARKADV
°
Ignition timing
IAT
°C {°F}
Intake air temperature
TP1
%
Throttle valve position No.1
THOP
EG_RUN_TIME
Time from engine start
CLR_CNT
Number of warm-up cycle after DTC cleared
CLR_DIST
Km {MILE.EN_UK}
Mileage after DTC cleared
VPWR
V
Module supply voltage
VPWR
APP1
%
Accelerator pedal position No.1