DTC Diagnosis Procedure
- CHECK DTC PRIORITY
If DTC P1089 or P1092 is displayed with DTC P1608 first perform the trouble diagnosis for DTC P1608.
Is applicable DTC detected?
YES
Perform diagnosis of applicable. Refer to DTC Description .
NO
GO TO 2.
- VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT
- Disconnect VVEL control shaft position sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between VVEL control shaft position sensor harness connector and ground.
DTC No.
VVEL control shaft position sensor
Ground
Voltage (V)
Bank
Connector
Terminal
P1089
1
F83
3
Ground
Approx. 5
6
P1092
2
F86
3
6
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 3.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between VVEL control shaft position sensor and VVEL control module
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK VVEL CONTROL SHAFT POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect VVEL control module harness connector.
- Check the continuity between VVEL control shaft position sensor harness connector and VVEL control module harness connector.
DTC No.
VVEL control shaft position sensor
VVEL control module
Continuity
Bank
Connector
Terminal
Connector
Terminal
P1089
1
F83
2
F84
6
Existed
5
19
P1092
2
F86
2
4
5
17
- Also check harness for short to ground and power.
Is the inspection result normal?
YES
GO TO 6.
NO
GO TO 5.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between VVEL control shaft position sensor and VVEL control module
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- VVEL CONTROL SHAFT POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between VVEL control shaft position sensor harness connector and VVEL control module harness connector.
DTC No.
VVEL control shaft position sensor
VVEL control module
Continuity
Bank
Connector
Terminal
Connector
Terminal
P1089
1
F83
1
F84
3
Existed
4
16
P1092
2
F86
1
5
4
18
- Also check harness for short to ground and power.
Is the inspection result normal?
YES
GO TO 8.
NO
GO TO 7.
- Check the continuity between VVEL control shaft position sensor harness connector and VVEL control module harness connector.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between VVEL control shaft position sensor and VVEL control module
- Loose or poor connection for each connector and harness
Repair open circuit, short to ground or short to power in harness or connectors.
- REPLACE VVEL CONTROL MODULE
- Replace VVEL control module.
- Perform additional service when replacing VVEL control module. Refer to Description .
GO TO 9.
- PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Erase DTC.
- Perform DTC Confirmation Procedure.
See DTC Description .
Is the DTC P1089 or P1092 displayed again?
YES
GO TO 10.
NO
INSPECTION END
- REPLACE VVEL ACTUATOR LADDER ASSEMBLY
Replace VVEL actuator ladder assembly. Refer to Removal and Installation .
INSPECTION END