For 1990-2009 cars

Important: The following steps must be completed before using the symptom tables.

#### Visual/Physical Inspection

• | Inspect for aftermarket devices which could affect the operation of the Keyless Entry System. Refer to Checking Aftermarket Accessories .

• | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

• | Inspect that the transmitter is the correct model for the vehicle. An incorrect module will not operate.

### Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions . Refer to Testing for Intermittent Conditions and Poor Connections .

### Symptoms list

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Keyless Entry Does Not Program