Diagnosis Procedure
- CHECK DTC PRIORITY
If DTC P2101 is displayed with DTC P2100 or P2119, first perform the confirmation procedure for DTC P2100 or P2119.
Is applicable DTC detected?
YES
Perform diagnosis of applicable.
- DTC P2100: Refer to DTC Description .
- DTC P2119: Refer to DTC Description .
NO
GO TO 2.
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL
Check the voltage between ECM harness connector terminals as per the following conditions.
ECM
Condition
Voltage
(Approx.)
+
-
Connector
Terminal
Connector
Terminal
F142
123
E152
204
Ignition switch: ON -> OFF
0 - 1.0 V -> Battery voltage -> 0 V
Ignition switch: ON
0 - 1.0 V
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 3.
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector.
- Check the continuity between ECM harness connector and IPDM E/R harness connector.
+
-
Continuity
ECM
IPDM E/R
Connector
Terminal
Connector
Terminal
F142
123
E124
65
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
- Check the continuity between ECM harness connector and IPDM E/R harness connector.
+
-
Continuity
ECM
IPDM E/R
Connector
Terminal
Connector
Terminal
F142
96
E123
57
Existed
- Also check harness for short to ground.
Is the inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit.
NO
Repair or replace error-detected parts.
- Check the continuity between ECM harness connector and IPDM E/R harness connector.
- CHECK THROTTLE CONTROL MOTOR (BANK 1) OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect electric throttle control actuator (bank 1) harness connector.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator (bank 1) harness connector and ECM harness connector.
Electric throttle control actuator (bank 1)
ECM
Continuity
Connector
Terminal
Connector
Terminal
F118
2
F142
150
Existed
149
Not existed
1
150
Not existed
149
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- CHECK THROTTLE CONTROL MOTOR (BANK 2) OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect electric throttle control actuator (bank 2) harness connector.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator (bank 2) harness connector and ECM harness connector.
Electric throttle control actuator (bank 2)
ECM
Continuity
Connector
Terminal
Connector
Terminal
F119
2
F142
148
Existed
147
Not existed
1
148
Not existed
147
Existed
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace error-detected parts.
- CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
- Remove the intake air duct. Refer to Exploded View .
- Check if foreign matter is caught between the throttle valve and the housing.
Is the inspection result normal?
YES
GO TO 8.
NO
Remove the foreign matter and clean the electric throttle control actuator inside, then perform throttle valve closed position learning. Refer to Description .
- CHECK THROTTLE CONTROL MOTOR (BANK 1) AND (BANK 2)
Check the throttle control motor (bank 1) and (bank 2). Refer to Component Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace malfunctioning electric throttle control actuator. Refer to Exploded View .