Diagnosis Procedure
- CHECK GROUND CONNECTIONS
- Turn ignition switch OFF.
- Loosen and retighten three ground screws on the body.
Refer to "GROUND INSPECTION ".
OK or NG
OK: GO TO 2.
NG: Repair or replace ground connections.
- CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
- Disconnect accelerator pedal position (APP) sensor harness connector.
- Turn ignition switch ON.
- Check voltage between APP sensor terminal 7 and ground with CONSULT-III or tester.
Voltage: Approximately 5V
OK or NG
OK: GO TO 5.
NG: GO TO 3.
- CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals
ECM TERMINAL REFERENCE CHARTECM terminal Sensor terminal Reference Wiring Diagram 48 EVAP control system pressure sensor terminal 3 "WIRING DIAGRAM - ENGINE CONTROL SYSTEM - " 49 Refrigerant pressure sensor terminal 1 Battery current sensor terminal 1 68 Power steering pressure sensor terminal 1 90 APP sensor terminal 7 OK or NG
OK: GO TO 4.
NG: Repair short to ground or short to power in harness or connectors.
- CHECK COMPONENTS
Check the following.
- EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION ".)
- Power steering pressure sensor (Refer to "COMPONENT INSPECTION ".)
- Battery current sensor (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor
OK or NG
OK: GO TO 7.
NG: Replace malfunctioning components.
- CHECK ACCELERATOR PEDAL POSITION SENSOR
Refer to "COMPONENT INSPECTION ".
OK or NG
OK: GO TO 7.
NG: GO TO 6.
- REPLACE ACCELERATOR PEDAL ASSEMBLY
- Replace accelerator pedal position assembly.
- Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
- Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
- Perform
"IDLE AIR VOLUME LEARNING
".
INSPECTION END
- CHECK INTERMITTENT INCIDENT
Refer to "HOW TO CHECK TERMINAL " and "INTERMITTENT INCIDENT ".
INSPECTION END