DTC Diagnosis Procedure
- CHECK TCM POWER SOURCE (PART 1)
- Turn ignition switch OFF.
- Disconnect A/T assembly connector.
- Check voltage between A/T assembly harness connector terminal and ground.
+
-
Condition
Voltage (Approx.)
A/T assembly
Connector
Terminal
F55
2
Ground
Always
Battery voltage
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 6.
- CHECK TCM POWER SOURCE (PART 2)
Check voltage between A/T assembly harness connector terminals and ground.
+
-
Condition
Voltage (Approx.)
A/T assembly
Connector
Terminal
F55
1
Ground
Turn ignition switch ON
Battery voltage
Turn ignition switch OFF
0 V
6
Turn ignition switch ON
Battery voltage
Turn ignition switch OFF
0 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 7.
- CHECK TCM GROUND CIRCUIT
Check continuity between A/T assembly harness connector terminals and ground.
A/T assembly
--
Continuity
Connector
Terminal
F55
5
Ground
Existed
10
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace damaged parts.
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
Is the inspection result normal?
YES
Replace the control valve & TCM. Refer to Exploded View .
NO
Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM (PART 1)
Check the following.
- Open circuit or short circuit in harness between battery positive terminal and A/T assembly harness connector terminal 2.
- Battery
- 10A fuse (No. 30).
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace damaged parts.
- CHECK HARNESS BETWEEN TCM RELAY E/R AND A/T ASSEMBLY
- Turn ignition switch OFF.
- Disconnect TCM relay connector.
- Check continuity between TCM relay harness connector terminal and A/T assembly harness connector terminals.
TCM relay
A/T assembly
Continuity
Connector
Terminal
Connector
Terminal
M88
5
F55
1
Existed
6
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace damaged parts.
- DETECT MALFUNCTIONING ITEM (PART 2)
Check the following.
- Open circuit or short circuit in harness between battery and TCM relay.
- Short circuit in harness between TCM relay harness connector terminal 5 and A/T assembly harness connector terminal 1, and 6.
- 10A fuse (No. 30).
- TCM relay
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace damaged parts.