Daytime Running Lamp Control Unit: Testing and Inspection
Daytime Running Lights Control Unit Input TestCanada
The DRL indicator light in the gauge assembly will come on when you turn the ignition switch to ON (II) with the headlight switch off and the parking brake set. It should go off when you turn on the headlight switch and release the parking brake. If it comes on at any other time, do the control unit input test.
NOTE: When the daytime running lights are on, the high beam indicator will glow at half its normal intensity.
1. Remove the driver's dashboard under cover.
2. Disconnect the 14P connector (A) from the daytime running lights control unit (B).
3. Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 4 ('02-03 models) or step 6 ('04-05 models).
'02-03 models
4. Make these input tests at the connector
- If any test indicates a problem, find and correct the cause then recheck the system
- If all the input tests prove OK, go to step 5
5. Reconnect the 14P connector to the daytime running lights control unit, and make these input tests at the connector
- If any test indicates a problem, find and correct the cause then recheck the system
- If all the input tests prove OK, the control unit must be faulty Replace it
'04-05 models
6. Make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 7.
7. Reconnect the 14P connector to the daytime running lights control unit, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty. Replace it.