RL V6-3474cc 3.5L (1998)
Lamp Out Sensor: Testing and Inspection
1. First make sure the brake lights come on when the brake pedal is depressed.
-
If all the brake lights come on, go to step 2.
-
If one of the brake lights does not come on, check whether the bulb is blown. If the bulb is OK, go to step 2.
-
If none of the brake lights come on, check the brake light circuit.
2. Open the trunk lid, and remove the rear trunk side trim.
3. Make sure the BRAKE LAMP light in the safety indicator does not come on and stay on when the left and right 6P connectors are disconnected
and the ignition switch is turned from OFF to engine running. If the BRAKE LAMP light in the safety indicator comes on and stays on, check for:
-
short to ground on the WHT/GRN wire between the safety indicator and the No.4 terminal of the left or right failure sensor.
-
a faulty safety indicator circuit (printed circuit board) in the gauge assembly.
-
If the BRAKE LAMP light does not come on, go to step 4.
4. Make sure the BRAKE LAMP light in the safety indicator comes on and goes off when the No.2 terminal of the left or right 6P connector is
grounded, the brake pedal is depressed, and the ignition switch is turned from OFF to ON (II).
-
If the BRAKE LAMP light does not go off, replace the left or right failure sensor.
-
If the BRAKE LAMP light goes off, check for:
-
a poor ground (G701)
-
an open in the BLK wire.
