Step | Action | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List | |||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||
2 |
Do the marker lamps illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||||
3 | Do the park lamps operate properly? | Go to Step 4 | |||||||
4 |
Does the test lamp illuminate? | Go to Step 14 | Go to Step 5 | ||||||
5 | Test the marker lamp supply voltage circuit for the following:
Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 6 | ||||||
6 | Test the marker lamp ground circuit for high resistance or an open. Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 7 | ||||||
7 |
Does the test lamp turn ON and OFF with the marker lamp defeat switch? | Go to Step 8 | Go to Step 10 | ||||||
8 |
Does the test lamp illuminate? | Go to Step 9 | Go to Step 15 | ||||||
9 |
Does the test lamp illuminate? | Go to Step 13 | Go to Step 16 | ||||||
10 | Test the control circuit of the marker lamp relay for high resistance or an open. Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 11 | ||||||
11 | Test the ground circuit of the marker lamp defeat switch for high resistance or an open. Refer to Circuit Testing and Wiring Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 12 | ||||||
12 | Inspect for poor connections at the harness connector of the marker lamp defeat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 17 | ||||||
13 | Inspect for poor connections at the harness connector of the marker lamp relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 18 | ||||||
14 | Inspect for poor connections at the inoperative marker lamp bulb. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs. Did you find and correct the condition? | Go to Step 20 | Go to Step 19 | ||||||
15 | Repair the following in the park lamps supply voltage circuit of the marker lamp relay:
Refer to Circuit Testing and Wiring Repairs. Did you complete the repair? | Go to Step 20 | -- | ||||||
16 | Repair the following in the battery positive voltage circuit of the marker lamp relay:
Refer to Circuit Testing and Wiring Repairs. Did you complete the repair? | Go to Step 20 | -- | ||||||
17 | Replace the marker lamp defeat switch. Refer to Accessory Switch Replacement. Did you complete the replacement? | Go to Step 20 | -- | ||||||
18 | Replace the marker lamp relay. Refer to Relay Replacement. Did you complete the replacement? | Go to Step 20 | -- | ||||||
19 | Replace the inoperative marker lamp bulb. Refer to Roof Marker Lamp Bulb Replacement and Luminescent Lamp Replacement - Outside Mirror. Did you complete the replacement? | Go to Step 20 | -- | ||||||
20 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |