Inspection steps

MIL illumination check

Turn the ignition switch to ON.

Check that the MIL illuminates in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Go to related circuit inspection listed in symptom table (Refer to SYMPTOM TABLE )

A: Go to next step

Reading SSM3 data

Connect the SSM3 to the DLC3.
Turn the ignition switch to ON.

Check that the communication between SSM3 and engine control computer can be executed normally.

NOTE: [Current Data Display & Save] for engine can be checked.

Result

Result	Go to
Communication not detected.	A
Communication detected.	B

B: Go to MIL CIRCUIT INSPECTION (Refer to )

A: Go to next step

Check throttle body assembly (with motor) (short-circuit inspection)

Disconnect the connector for throttle body assembly.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of throttle body assembly (with motor) (refer to REMOVAL )

A: Go to next step

Check air pressure sensor assembly (short-circuit inspection)

Disconnect the connector for air pressure sensor assembly.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of air pressure sensor assembly (refer to VACUUM SENSOR ASSEMBLY (FA20) )

A: Go to next step

Check fuel pressure sensor (short-circuit inspection)

Disconnect the connector for the fuel pressure sensor.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of the fuel pressure sensor (refer to REMOVAL )

A: Go to next step

Check accelerator pedal sensor assembly (short-circuit inspection)

Disconnect the connector for accelerator pedal sensor assembly.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of accelerator pedal sensor assembly (refer to ACCELERATOR PEDAL ROD ASSEMBLY (FA20) )

A: Go to next step

Check battery current sensor (short-circuit inspection)

Disconnect the connector for battery current sensor.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of battery current sensor (refer to BATTERY CURRENT SENSOR )

A: Go to next step

Check canister pump module (short-circuit inspection)

Disconnect the connector for canister pump module.
Turn the ignition switch to ON.

Check the MIL in the combination meter assembly.

Result

Result	Go to
Does not illuminate	A
Illuminates	B

B: Replacement of canister pump module

A: Go to next step

Check wiring harness and connector (short-circuit inspection)

NOTE: For the inspection procedure and precautions for wiring harnesses and connectors, refer to INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM .

Disconnect the connector for throttle body assembly.
Disconnect the connector for air pressure sensor assembly.
Disconnect the connector for the fuel pressure sensor.
Disconnect the connector for accelerator pedal sensor assembly.
Disconnect the connector for battery current sensor.
Disconnect the connector for the engine control computer.

Measure the resistance between the terminals. (Refer to ECM TERMINAL ARRANGEMENT for the terminal arrangement)

Resistance

RESISTANCE REFERENCE

Inspection terminals	Inspection conditions	Standard value
A36-19 (VC) - chassis ground	Always	10 k Ωor more
A35-22 (VCP2) - chassis ground	Always	10 k Ωor more
A35-21 (VCPA) - chassis ground	Always	10 k Ωor more

NG: Repair or replacement of wiring harness or connector

OK: Replacement of the engine control computer (refer to REMOVAL )