Troubleshooting Chart

Engine operation is not normal or the engine trouble warning light is on. * Engine trouble warning light may not come on even if the engine operation is not normal.

The engine trouble warning light comes on.

Check the fault code number displayed on the meter.

Identify the system with the malfunction. (Refer to the "FAIL-SAFE ACTIONS TABLE".)

Identify the probable cause of malfunction. (Refer to the "Fault code table".)

Check and repair the probable case of malfunction.

Fault code No. YES

Fault code No. NO

Check and repair. (Refer to "TROUBLESHOOTING DETAILS".)

Monitor the operation of the sensors and actuators in the diagnostic mode. (Refer to "Diagnostic mode table" in chapter 7)

Check and repair. (Refer to "TROUBLESHOOTING DETAILS".)

Perform ECU reinstatement action. (Refer to "Reinstatement method" in "TROUBLESHOOTING DETAILS".)

Perform ECU reinstatement action. (Refer to "Reinstatement method" in "TROUBLESHOOTING DETAILS".)

The engine trouble warning light does not come on.

Check the operation of following sensors and actuators in the diagnostic mode (Refer to "Diagnostic mode table" in chapter 7.) 01: Throttle position sensor (throttle angle) 30: Ignition coil #1, #4 31: Ignition coil #2, #3 36: Injector #1, #4 37: Injector #2, #3 48: Al system solenoid

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