ON-BOARD DIAGNOSTIC SYSTEM FAIL-SAFE FUNCTION [AY6A-EL, AY6AX-EL]

id0502k1280200

Special Features

DTC-Separate Fail-Safe

DTC No.	Definition	Fail-safe
P0220:00	Accelerator pedal position circuit	•  Inhibits learning control •  Inhibits TCC control •  Inhibits slip control •  Inhibits adaptive shift control •  Fixes the accelerator pedal position open signal at 18.8%
P0601:00	Flash ROM error	•  Emergency mode 3
P0603:00	EEPROM error	•  TCM uses the default value as the initial value for EEPROM
P0604:00	RAM error	•  Emergency mode 3
P0702:00	Linear solenoid driver electrical	•  Emergency mode 1
P0706:00	TR switch circuit range/performance	•  Emergency mode 4 •  Locks in D position, if the counter drive gear (output) speed signal (VSS) is 0 rpm
P0707:00	TR switch circuit low	•  Emergency mode 4 •  Locks in D position, if the counter drive gear (output) speed signal (VSS) is 0 rpm
P0708:00	TR switch circuit high	•  Emergency mode 4 •  Locks in D position, if the counter drive gear (output) speed signal (VSS) is 0 rpm
P0711:00	TFT sensor circuit range/performance	•  Inhibits learning control •  Inhibits slip control •  Fixes ATF temperature value at 80 °C {176 °F}
P0712:00	TFT sensor circuit low	•  Inhibits learning control •  Inhibits slip control •  Fixes ATF temperature value at 80 °C {176 °F}
P0713:00	TFT sensor circuit high	•  Inhibits learning control •  Inhibits slip control •  Fixes ATF temperature value at 80 °C {176 °F}
P0715:00	Input/turbine speed sensor circuit	•  Emergency mode 3
P0717:00	Input/turbine speed sensor circuit no signal	•  Emergency mode 3
P0720:00	VSS circuit	•  Inhibits learning control •  Inhibits adaptive shift control •  Back up from another device (DSC/RSC HU/CM, input/turbine speed sensor)
P0722:00	VSS circuit no signal	•  Inhibits learning control •  Inhibits adaptive shift control •  Back up from another device (DSC/RSC HU/CM, input/turbine speed sensor)
P0727:00	Engine speed input circuit no signal	•  Emergency mode 3
P0729:00	Gear 6 incorrect ratio	•  Emergency mode 2
P072D:00	Incorrect gear ratio (1GR with engine brake stuck 2GR/3GR)	•  Inhibits learning control •  Inhibits adaptive shift control
P0730:00	Incorrect gear ratio (1GR with engine brake stuck 4GR)	•  Inhibits adaptive shift control
P0731:00	Gear 1 incorrect ratio	•  Emergency mode 2
P0732:00	Gear 2 incorrect ratio	•  Emergency mode 2
P0733:00	Gear 3 incorrect ratio	•  Emergency mode 2
P0734:00	Gear 4 incorrect ratio	•  Emergency mode 2
P0735:00	Gear 5 incorrect ratio	•  Emergency mode 2
P073F:00	Incorrect Gear Ratio (1GR with engine brake)	•  Inhibits learning control •  Inhibits adaptive shift control
P074A:00	Gear 2 stuck	•  Shifting to safe gear
P074B:00	Gear 3 stuck	•  Shifting to safe gear
P074C:00	Gear 4 stuck	•  Shifting to safe gear
P074D:00	Gear 5 stuck	•  Shifting to safe gear
P074E:00	Gear 6 stuck	•  Shifting to safe gear
P0762:00	Shift solenoid C stuck on	•  Emergency mode 2
P0766:00	Shift solenoid D performance or stuck off	•  Emergency mode 2
P0771:00	Shift solenoid E performance or stuck off	•  Emergency mode 2
P0817:00	Starter lock output signal circuit	-
P0819:00	Up and down switch to transaxle range correlation	•  Inhibits manual mode control
P0867:00	ATF pressure	-
P0882:00	TCM B+ low	•  Emergency mode 5
P0883:00	TCM B+ high	•  Emergency mode 3
P0942:00	Hydraulic pressure unit (at D position)	•  Emergency mode 2
P0961:00	Line pressure control solenoid circuit range/performance	•  Emergency mode 1
P0962:00	Line pressure control solenoid circuit low	•  Emergency mode 3
P0963:00	Line pressure control solenoid circuit high	•  Emergency mode 3
P0973:00	Shift solenoid A circuit low	•  Emergency mode 3
P0974:00	Shift solenoid A circuit high	•  Emergency mode 3
P0976:00	Shift solenoid B circuit low	•  Inhibits learning control •  Inhibits 1GR (M position)
P0977:00	Shift solenoid B circuit high	•  Inhibits learning control •  Inhibits 1GR (M position)
P0978:00	Shift solenoid C circuit range/performance	•  Emergency mode 1
P0979:00	Shift solenoid C circuit low	•  Emergency mode 1
P0980:00	Shift solenoid C circuit high	•  Emergency mode 1
P0981:00	Shift solenoid D circuit range/performance	•  Emergency mode 1
P0982:00	Shift solenoid D circuit low	•  Emergency mode 1
P0983:00	Shift solenoid D circuit high	•  Emergency mode 1
P0984:00	Shift solenoid E circuit range/performance	•  Emergency mode 1
P0985:00	Shift solenoid E circuit low	•  Emergency mode 1
P0986:00	Shift solenoid E circuit high	•  Emergency mode 1
P0997:00	Shift solenoid F circuit range/performance	•  Emergency mode 1
P0998:00	Shift solenoid F circuit low	•  Emergency mode 1
P0999:00	Shift solenoid F circuit high	•  Emergency mode 1
P1700:00	Hydraulic pressure unit (at R position)	•  Inhibits learning control
P1719:00	Engine torque signal error (inaccurate signal)	•  Inhibits learning control •  Inhibits adaptive shift control •  Performs control with the engine torque value of 1.2
P1738:00	Shift control solenoid component malfunction	•  Inhibits adaptive shift control
P1783:00	ATF high oil temperature malfunction	•  Request torque limitation
P1919:00	Engine coolant temperature signal error	•  Inhibits slip control •  Fixes the engine coolant temperature signal at 80 °C{176 °F}
P2544:00	Engine torque signal error (invalid signal)	•  Emergency mode 3
P2708:00	Shift solenoid F stuck on	•  Emergency mode 2
P2757:00	TCC control solenoid circuit performance or stuck off	•  Inhibits learning control •  Inhibits TCC control •  Inhibits slip control •  Inhibits adaptive shift control
P2762:00	TCC control solenoid range/performance	•  Emergency mode 1
P2763:00	TCC control solenoid circuit high	•  Inhibits learning control •  Inhibits TCC control •  Inhibits slip control •  Inhibits adaptive shift control
P2764:00	TCC control solenoid circuit low	•  Inhibits learning control •  Inhibits TCC control •  Inhibits slip control •  Inhibits adaptive shift control
P2806:00	Neutral position learning (Not performed yet)	•  Locks start lock signal
U0073:00	Control module communication bus off	•  Emergency mode 3
U0100:00	Lost communication with PCM	•  Emergency mode 3
U0121:00	Lost communication with DSC/RSC HU/CM	•  Inhibits learning control
U0155:00	Lost communication with instrument cluster	•  Inhibits learning control
U0415:00	Invalid data received from DSC/RSC HU/CM	•  Inhibits learning control

Emergency Mode

Fail-safe

•  Inhibits learning control

•  Inhibits TCC control

•  Inhibits adaptive shift control

•  Inhibits adaptive shift control (Inhibit to start adaptive shift)

•  Inhibits reverse control

Emergency mode 1

ac9uun00000824

•  Failure decided by Linear solenoid B+ short or GND short/Open or Feedback or Driver malfunction.

Gear condition at failure detection	Gear	Step 1	Step 2a	Step 2b	Step 3	Step 4	Step 5
	R	Solenoid cut	Keep condition	Keep condition	Keep condition	Keep condition	Keep condition
	1GR	Shifting to 3GR		*1	Keep gear	Shifting to 3GR	Keep gear
	2GR
	3GR
	4GR	Shifting to 5GR
	5GR
	6GR

1.  All of the following conditions are fulfilled;

―  Selector lever position: R

―  Vehicle speed 0 km/h {0 mph} or less

2.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 20 km/h {12 mph} or less

3.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 30 km/h {18 mph} or less

―  Engine torque: less than 50 N·m {5.0 kgf·m, 36 ft·lbf}

Emergency mode 2

ac9uun00000781

•  Failure decided by Gear ratio or Unusual shifting or Neutral condition or VSS no pulse.

Gear condition at failure detection	Gear	Step 1	Step 2	Step 3	Step 4	Step 5
	R	Keep condition	Keep condition	Keep condition	Keep condition	Keep condition
	1GR	•  Keep gear •  Inhibits TCC control	•  Shift solenoid C and shift solenoid D solenoid output ON •  Other solenoid output OFF •  Keep gear	•  Keep condition •  Neutral detection	Shifting to 5GR	•  Keep gear •  Inhibits TCC control
	2GR
	3GR
	4GR
	5GR
	6GR

1.  All of the following conditions are fulfilled;

―  Selector lever position: R

―  Vehicle speed: 0 km/h {0 mph} or less

2.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 20 km/h {12 mph} or less

3.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 30 km/h {18 mph} or less

―  Engine torque: less than 50 N·m {5.0 kgf·m, 36 ft·lbf}

Emergency mode 3

ac9uun00000828

•  Failure decided by Electrical failure except Linear solenoid B+ short or GND short/Open, Contact-less position switch or Battery voltage low supply voltage.

Gear condition at failure detection	Gear	Step 1	Step 2	Step 3	Step 4
	R	Keep condition	Keep condition	Keep condition	Keep condition
	1GR	Keep gear	Keep gear	Shift to 3GR	Keep gear
	2GR
	3GR			Keep gear
	4GR			Shift to 3GR
	5GR
	6GR

1.  All of the following conditions are fulfilled;

―  Selector lever position: R

―  Vehicle speed: 0 km/h {0 mph} or less

2.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 20 km/h {12 mph} or less

3.  All of the following conditions are fulfilled;

―  Selector lever position: P, N, D (include manual mode)

―  Vehicle speed: 30 km/h {18 mph} or less

―  Engine torque: less than 50 N·m {5.0 kgf·m, 36 ft·lbf}

Emergency mode 4

ac9uun00000829

•  Failure decided by Contact-less position switch.

Gear condition at failure detection	Gear	Step 1	Step 2	Step 3	Step 4
	R	Keep condition	Keep condition	Keep condition	Keep condition
	1GR	Keep gear	Keep gear	Shift to 3GR	Keep gear
	2GR
	3GR	Shift to 4GR
	4GR	Keep gear
	5GR	Shift to 6GR
	6GR	Keep gear

Emergency mode 5

ac9uun00000830

•  Failure decided by Battery voltage low supply voltage.

Gear condition at failure detection	Gear	Step 1
	R	All solenoid output OFF
	1GR	All solenoid output OFF (Shifting to 3GR)
	2GR
	3GR
	4GR	All solenoid output OFF (Shifting to 5GR)
	5GR
	6GR