FAILURE DIAGNOSIS
1-122
TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
E-ECU Internal and Communication Errors
E-ECU Internal Errors
(1) P0601/12, P1610/12, P1611/12, P1612/12: ECU internal errors (1)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The E-ECU internal circuitry may be faulty.
Diagnosis Description
DTC
P0601/12
EEPROM error (read/write error)
P1610/12
Failure A with Sub-CPU
P1611/12
Failure B with Sub-CPU
P1612/12
Failure C with Sub-CPU
1 - Precondition; 2 - Detecting condition(s); 3 - Flashing pattern of failure indicator
Check points
1. Key switch ON.
2. E-ECU detects an error of the internal circuit.
3. Four flashes followed by one flash.
E-ECU
Error Mode
[Run As Is]:
After detecting the error, the system lets the engine continue to run without any
restrictions.
Run restricted?
No.
Recovery
Conditions
No.
Remarks
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Turn the key switch on/off to check the fault indication again.
*For details of the method and the procedure of diagnosis, see P.1-197
TNV_DI_SM_A4-Troubleshooting.book 122 ページ ２００７年１１月１５日 木曜日 午後５時２７分
