Diagnosis Procedure
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
Check the voltage between ECM harness connector terminals as per the following.
DTC ECM Condition Voltage (V) + - Connector Terminal Connector Terminal P1233 M160 173 M160 175 Ignition switch OFF Approx. 0 P2101 Ignition switch ON Battery voltage Is the inspection result normal?
YES: GO TO 8.
NO: GO TO 2.
- CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect IPDM E/R harness connector E5.
- Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R ECM Continuity Connector Terminal Connector Terminal E5 7 M160 173 Existed - Also check harness for short to ground and short to power.
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 ECM and IPDM E/R
- Loose or poor connection for each connector and harness
: Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
- Check the continuity between IPDM E/R harness connector and ECM harness connector.
DTC IPDM E/R ECM Continuity Connector Terminal Connector Terminal P1233
P2101E7 71 M160 123 Existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 6.
NO: GO TO 5.
- Check the continuity between IPDM E/R harness connector and ECM harness connector.
- DETECT MALFUNCTIONING PART
Check the following.
- Harness for open or short between ECM and IPDM E/R
- Loose or poor connection for each connector and harness
: Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK FUSE
- Disconnect 15 A fuse (No. 50) from IPDM E/R.
- Check if 15 A fuse is blown.
Is the inspection result normal?
YES: GO TO 7.
NO: Replace 15 A fuse.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace harness or connectors.
- CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
- Turn ignition switch OFF.
- Disconnect electric throttle control actuator harness connector.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
DTC Electric throttle control actuator ECM Continuity Bank Connector Terminal Connector Terminal P1233 2 F64 5 F111 62 Not existed 58 Existed 6 62 Existed 58 Not existed P2101 1 F66 5 F111 57 Not existed 63 Existed 6 57 Existed 63 Not existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 9.
NO: Repair or replace malfunctioning part.
- CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
- Remove the intake air duct. Refer to "EXPLODED VIEW ".
- Check that no foreign matter is caught between the throttle valve and the housing.
Is the inspection result normal?
YES: GO TO 10.
NO: Remove the foreign matter and clean the electric throttle control actuator inside, and then perform throttle valve closed position learning. Refer to "WORK PROCEDURE ".
- CHECK THROTTLE CONTROL MOTOR
Refer to "COMPONENT INSPECTION (ELECTRIC THROTTLE CONTROL MOTOR) ".
Is the inspection result normal?
YES: GO TO 11.
NO: GO TO 12.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: GO TO 12.
NO: Repair or replace harness or connectors.
- REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace malfunction electric throttle control actuator. Refer to "REMOVAL AND INSTALLATION ".
: INSPECTION END