Headlamps Inoperative - Low Beams Eur, Jap, Chev Dom, Pont, Gulf States
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Do the low beam headlamps illuminate? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are the low beams inoperative with the switch (Pont, Chevy Dom, Gulf States only)? | -- | Go to Step 4 | Go to Step 5 |
4 |
Does the test lamp illuminate? | -- | Go to Step 8 | Go to Step 9 |
5 | Are the low beams inoperative (DRL switch and Pontiac) only? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair a poor connection or an open in the signal circuit of the headlamp switch between C200D/B terminal B5 and S202. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 12 | -- |
7 |
Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 11 |
8 | Repair a poor connection or an open in the signal circuit of the headlamp switch. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 12 | -- |
9 | Replace the headlamp switch. Refer to Headlamp Switch Replacement or Headlamp Switch Replacement . Did you complete the repair? | -- | Go to Step 12 | -- |
10 | Repair a poor connection or an open in the supply voltage circuit of the low beam headlamps between the headlamp dimmer switch connector terminal C and S153. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 12 | -- |
11 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle and Dimmer Switch Assembly - Assemble - Off Vehicle . Did you complete the replacement? | -- | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
Headlamps Inoperative - Low Beams Scandinavia
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Do the low beams illuminate? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are the low beam headlamps inoperative with DRL and the switch? | -- | Go to Step 4 | Go to Step 5 |
4 | Inspect the high beam headlamps. Do they operate? | -- | Go to Step 8 | Go to Step 9 |
5 | Are the low beam headlamps inoperative with just the switch? | -- | Go to Step 6 | Go to Step 7 |
6 |
Does the test lamp illuminate? | -- | Go to Step 12 | Go to Step 13 |
7 |
Does the test lamp illuminate? | -- | Go to Step 14 | Go to Step 15 |
8 | Repair a poor connection or an open in the supply voltage circuit of the low beam headlamps. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
9 | Connect a test lamp between the headlamp switch terminal J and ground. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 10 | Go to Step 11 |
10 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | -- | Go to Step 24 | -- |
11 | Repair a poor connection or an open in the battery positive voltage circuit of the headlamp switch. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
12 | Repair a poor connection or an open in the supply voltage circuit of the low beam headlamps. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
13 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle and Dimmer Switch Assembly - Assemble - Off Vehicle . Did you complete the replacement? | -- | Go to Step 24 | -- |
14 | Connect a test lamp between the DRL relay terminals 30 and 86. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 17 |
15 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | -- | Go to Step 24 | -- |
16 |
Does the test lamp illuminate? | -- | Go to Step 18 | Go to Step 19 |
17 | Connect a test lamp between the DRL relay terminal 30 and ground. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 20 | Go to Step 21 |
18 | Repair a poor connection or an open in the supply voltage circuit of the low beam headlamps. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
19 | Connect a test lamp between the DRL relay terminal 85 and ground. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 22 | Go to Step 23 |
20 | Repair a poor connection or an open in the ground circuit of the DRL relay coil. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
21 | Repair a poor connection or an open in the supply voltage circuit of the DRL relay switch. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
22 | Replace the DRL relay. Did you complete the replacement? | -- | Go to Step 24 | -- |
23 | Repair a poor connection or an open in the ignition 3 voltage circuit of the DRL relay coil. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 24 | -- |
24 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
