Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Upfitter Provision Schematics in Wiring Systems Connector End View Reference: Lighting Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Verify that the roof beacon lamp is always on. Does the roof beacon lamp operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the roof beacon relay. Does the roof beacon lamp turn off? | Go to Step 4 | Go to Step 6 |
4 |
Does the roof beacon lamp turn off? | Go to Step 7 | Go to Step 5 |
5 | Test the hazard switch signal circuit of the roof beacon switch for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
6 | Repair the hazard flasher signal circuit of the roof beacon relay for a short to voltage. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 9 | -- |
7 | Replace the roof beacon switch. Did you complete the replacement? | Go to Step 9 | -- |
8 | Replace the roof beacon relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 9 | -- |
9 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3 |
