Diagnosis Procedure
- CHECK TCM POWER CIRCUIT (PART 1)
- Turn ignition switch OFF.
- Disconnect TCM connector.
- Check voltage between TCM harness connector terminals and ground.
+
-
Voltage
TCM
Connector
Terminal
F25
45
Ground
10 - 16 V
46
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 4.
- CHECK TCM POWER CIRCUIT (PART 2)
Check voltage between TCM harness connector terminals and ground.
+
-
Condition
Voltage
TCM
Connector
Terminal
F25
47
Ground
Ignition switch ON
10 - 16 V
Ignition switch OFF
Approx. 0 V
48
Ignition switch ON
10 - 16 V
Ignition switch OFF
Approx. 0 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 5.
- CHECK TCM GROUND CIRCUIT
Check continuity between TCM harness connector terminals and ground.
TCM
--
Continuity
Connector
Terminal
F25
41
Ground
Existed
42
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace malfunctioning parts.
- DETECT MALFUNCTION ITEMS (PART 1)
Check the following items:
- Open or short circuit in harness between battery positive terminal and fuse block (J/B). Refer to Wiring Diagram - BATTERY POWER SUPPLY - .
- Open or short circuit in harness between fuse block (J/B) connector terminal 2N and TCM harness connector terminal 45, and 46.
- 10A fuse [No. 25, located in the fuse block (J/B)]. Refer to Terminal Arrangement .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace malfunctioning parts.
- DETECT MALFUNCTIONING ITEMS (PART 2)
Check the following items:
- Open or short circuit in harness between ignition switch and IPDM E/R. Refer to Wiring Diagram - IGNITION POWER SUPPLY - .
- Open or short circuit in harness between IPDM E/R connector terminal 61 and TCM harness connector terminal 47, and 48.
- 10A fuse (No. 46, located in the IPDM E/R). Refer to IPDM E/R Terminal Arrangement .
- IPDM E/R
Is the check result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace malfunctioning parts.