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1.

Ignition "OFF".

2.

Refer to "Shop Manual" and disconnect PCM connector.

3.

Ignition "ON".

4.

Measure voltage between Pin No. 6 (Engine Control Relay On Input) terminal of PCM and chassis ground.

Specification : Remain stable at battery voltage

5.

Is the measured value within specification?

	▶ Using a GDS, check PCM software version and upgrade as necessary. If version is the newest one, check PCM for contamination, deterioration, or damage.
	▶ If the diagnostics have been performed correctly with no failure found, replace the ECM/PCM and then go to "Verification of Vehicle Repair" procedure.

caution

When replacing the ECM/PCM, the vehicle equipped with the immobilizer must be performed procedure as below.

[In the case of installing used ECM/PCM]

1) Perform "ECM Neutral mode" procedure with GDS. (Refer to "Immobilizer" in BE group)

2) After finishing "ECM Neutral mode", perform "Key teaching" procedure with GDS. (Refer to "Immobilizer" in BE group)

[In the case of installing new ECM/PCM]

Perform "Key teaching" procedure with GDS. (Refer to "Immobilizer" in BE group)

caution

When replacing the ECM/PCM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below.

[In the case of installing used ECM/PCM]

1) Perform "ECM Neutral mode" procedure with GDS. (Refer to "Smart key" in BE group)

2) After finishing "ECM Neutral mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM/PCM learns the smart key information automatically.

[In the case of installing new ECM/PCM]

Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM/PCM learns the smart key information automatically.