Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics | |||
1 | Did you perform the Lighting System Diagnostic System Check? | Go to Step 2 | |
2 |
Do the park lamps operate properly? | Go to Step 3 | Go to Park Lamps Inoperative |
3 |
Do the position lamps operate properly? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 4 |
4 | Are both position lamps inoperative? | Go to Step 5 | Go to Step 10 |
5 |
Do you hear a click when you command the STANDING LP Relay ON and OFF? | Go to Step 9 | Go to Step 6 |
6 |
Does the test lamp illuminate? | Go to Step 7 | Go to Step 26 |
7 | Connect a test lamp between the battery positive voltage circuit of the STANDING LP Relay coil and the control circuit of the STANDING LP Relay. Without commanding the relay on, does the test lamp illuminate? | Go to Step 18 | Go to Step 8 |
8 | Command the STANDING LP Relay ON. Does the test lamp illuminate? | Go to Step 23 | Go to Step 17 |
9 |
Does the test lamp illuminate? | Go to Step 23 | Go to Step 30 |
10 |
Does the test lamp illuminate? | Go to Step 11 | Go to Step 12 |
11 | Connect a test lamp between the supply voltage circuit of the position lamp and the ground circuit of the position. Does the test lamp illuminate? | Go to Step 24 | Go to Step 27 |
12 | Command the POSN LP Relay ON and OFF by placing the headlamp switch in the appropriate position. Do you hear a click when you command the POSN LP Relay ON and OFF? | Go to Step 15 | Go to Step 13 |
13 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 29 |
14 |
Does the test lamp illuminate? | Go to Step 22 | Go to Step 20 |
15 |
Does the test lamp illuminate? | Go to Step 16 | Go to Step 28 |
16 | Connect a 15 amp fused jumper between the battery positive voltage circuit of the POSN Relay switch and the supply voltage circuit of the position lamp. Does the position lamp illuminate? | Go to Step 22 | Go to Step 19 |
17 | Test for an open or high resistance in the control circuit of the STANDING LP Relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | Go to Step 25 |
18 | Test for a short to ground in the control circuit of the STANDING LP Relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | Go to Step 25 |
19 | Test for an open or high resistance in the supply voltage circuit of the position lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | Go to Step 27 |
20 | Test for an open or high resistance in the control circuit of the POSN LP Relay. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 21 |
21 | Inspect for poor connections at the headlamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 31 |
22 | Inspect for poor connections at the appropriate POS LP relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 32 |
23 | Inspect for poor connections at the STANDING LP relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 33 |
24 | Inspect for poor connections at the inoperative position lamp. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 34 |
25 | Inspect for poor connections at the dash integration module (DIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 36 | Go to Step 35 |
26 | Repair an open or high resistance in the battery positive voltage circuit of the STANDING LP Relay coil. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | -- |
27 | Repair an open or high resistance in the ground circuit of the position lamp. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | -- |
28 | Repair an open or high resistance in the battery positive voltage circuit of the POS LP Relay switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | -- |
29 | Repair an open or high resistance in the supply voltage circuit of the POS LP Relay coil. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | -- |
30 | Repair an open or high resistance in the battery positive voltage circuit of the STANDING LP Relay switch. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 36 | -- |
31 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Did you complete the replacement? | Go to Step 36 | -- |
32 | Replace the appropriate POS LP relay. Did you complete the replacement? | Go to Step 36 | -- |
33 | Replace the STANDING LP relay. Did you complete the replacement? | Go to Step 36 | -- |
34 | Replace the inoperative position lamp. Did you complete the replacement? | Go to Step 36 | -- |
35 |
Important:: Perform the setup procedure for the Dash Integration Module (DIM). Refer to Body Control Module (BCM) Programming/RPO Configuration . Replace the DIM. Refer to Dash Integration Module Replacement in Body Control System. Did you complete the replacement? | Go to Step 36 | -- |
36 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
