Panic Mode Inoperative

Panic Mode Inoperative

Diagnostic Fault Information

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Diagnostic System Check - Vehicle

Circuit/System Description

The keyless entry system is a vehicle entry device. The keyless entry will unlock/unlatch the vehicle doors when a corresponding button on the key fob is pressed. This is accomplished by the key fob sending a radio frequency to the body control module (BCM). The signal is received by the BCM via an internal antenna. A low transmitter battery or radio frequency (RF) interference from aftermarket devices such as 2-way radios, power inverters, cellular phone chargers, computers, etc. may cause a system malfunction. High RF traffic areas, such as gas stations which use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction.

Diagnostic Aids

For the J 43241 Keyless Entry Tester, inspect the keyless entry transmitter part number to determine that it is the correct model for the vehicle. A wrong model transmitter may pass the test, but it will not activate the vehicle remote system.

Circuit/System Testing

1. Operate the panic function. The horns should pulse and the daytime running lamps should flash on and off.

• If none of the panic functions operate, refer to Keyless Entry System Inoperative. Keyless Entry System Inoperative

2. Verify that the headlamps pulse ON and OFF when the panic button is pressed.

• If they do not pulse ON and OFF, refer to Diagnostic Starting Point - Lighting Systems. Initial Inspection and Diagnostic Overview

3. Refer to Diagnostic Starting Point - Horns. Initial Inspection and Diagnostic Overview

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

* Transmitter Programming for transmitter programming
* Refer to Programing and Relearning for BCM replacement, setup, and programming. Programming and Relearning