ECM Enable Relay Signal Test

NOTE: The following table is used to verify voltage at the Pass Key Decoder Module connector with the connector CONNECTED and the ignition switch in the "RUN" position.

ECM ENABLE RELAY SIGNAL TEST (TABLE 1)

Measure Between

Correct Voltage

For Diagnosis

A2 (DK BLU) & GROUND

2-3 Volts

⁽¹⁾

* If voltages is correct but car will not start and voltage is still present, replace Engine Control Module (ECM).

⁽¹⁾	Go to ECM ENABLE SIGNAL TEST (TABLE 2)

NOTE: The following table is used to verify voltage at the Pass Key Decoder Module connector with the connector DISCONNECTED and the ignition switch in the "RUN" position.

ECM ENABLE SIGNAL TEST (TABLE 2)

Measure Between

Correct Voltage

For Diagnosis

A2 (DK BLU) & GROUND

5 Volts

⁽¹⁾

* If voltage is correct, check for good contact between the PASS Key Decoder Module and its connector. If contact is good, replace the PASS Key Decoder Module.

⁽¹⁾	Check DK BLU (229) wire for an open or a short to ground. If wires are good check for good contact between Engine Control Module (ECM) and its connectors. If contact is good, replace the Engine Control Module (ECM).

NOTE: If the PASS Key Decoder Module is replaced, its key code may not match the owner's keys. Try the owner's keys, if they don't work see the Key Duplication Procedure.

NOTE: The following table continues to verify voltage at the Pass Key Decoder Module connector with the connector DISCONNECTED and the ignition switch in the "RUN" position.

SECURITY INDICATOR OPEN TEST

Measure Between

Correct Voltage

For Diagnosis

A4 (GRY) & GROUND

BATTERY

⁽¹⁾

* If voltage is correct do Test B.

⁽¹⁾	Check GRY (923) wire for an open. If OK replace Instrument Cluster.