Description
TCM checks the value read in FLASH ROM at ignition switch ON, and judges if there is writing failure to FLASH ROM or malfunction of FLASH ROM.
DTC Logic
DTC DETECTION LOGIC
| DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
| P062F | Internal Control Module EEPROM Error | When the ignition switch is ON, an error detected is the memory back-up value from the TCM FLASH ROM. | Control valve ASSY (ROM-assembly) |
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn the ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
Is "P062F" detected?
YES >> Go to TM, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.PERFORM DTC CONFIRMATION PROCEDURE
Refer to GI, "Intermittent Incident".
Is the inspection result normal?
YES >> Replace the TCM. Refer to TM, "Removal and Installation".
NO >> Repair or replace damaged parts.
U1117 Lost communication (ABS)DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes U1117 Lost Communication With ABS When the ignition switch is ON, ...

DTC Logic DTC DETECTION LOGIC DTC Trouble diagnosis name DTC detection condition Possible causes P0705 Transmission Range Sensor "A" Circuit Malfunction (PRNDL inpu ...
Hazard warning flasher switch
Push the switch on to warn other drivers when
you must stop or park under emergency conditions.
All turn signal lights flash.
WARNING
If stopping for an emergency, be sure to
move the vehicle well off the road.
Do not use the hazard warning flashers
while moving on the highway unl ...
Main power supply and ground circuit
Diagnosis Procedure
1.CHECK TCM POWER CIRCUIT 1
Turn the ignition switch OFF.
Disconnect the TCM connector.
Check the voltage between the TCM harness connector terminals and
ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK TCM POWER ...