Step | Action | Yes | No | ||||||
---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Headlights/Daytime Running Lights (DRL) 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 high beams illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 | ||||||
3 | Is only one high beam headlamp inoperative? | Go to Step 15 | Go to Step 4 | ||||||
4 | Place the headlamp dimmer switch in to the FTP position. Do the high beam headlamps illuminate? | Go to Step 7 | Go to Step 5 | ||||||
5 |
Do the high beam headlamps illuminate? | Go to Step 9 | Go to Step 6 | ||||||
6 |
Do the high beam headlamps illuminate? | Go to Step 10 | Go to Step 14 | ||||||
7 |
Do the high beam headlamps illuminate? | Go to Step 12 | Go to Step 8 | ||||||
8 | Test for poor connection, short to battery positive voltage or an open in the headlamp dimmer switch high beam signal circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 20 | ||||||
9 |
Do the headlamps illuminate? | Go to Step 11 | Go to Step 20 | ||||||
10 | Test for a short to battery positive voltage, a poor connection or an open in the headlamp high beam relay control circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 13 | ||||||
11 | Test for a poor connection or an open in the ground circuit of the turn signal/multifunction switch. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 12 | ||||||
12 | Inspect for a poor connection at the harness connector of the multifunction turn signal switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 16 | ||||||
13 | Inspect for a poor connection at the harness connector of the HI BEAM relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 17 | ||||||
14 | Inspect for a poor connection at the harness connectors of the underhood fuse block. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 18 | ||||||
15 | Inspect the inoperative high beam headlamp battery positive voltage supply and ground circuit for the following:
Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 21 | Go to Step 19 | ||||||
16 | Replace the multifunction turn signal switch. Refer to Turn Signal Multifunction Switch Replacement . Did you complete the replacement? | Go to Step 21 | -- | ||||||
17 | Replace the HI BEAM relay. Refer to Relay Replacement . Did you complete the replacement? | Go to Step 21 | -- | ||||||
18 | Replace the underhood fuse block. Refer to Relay Replacement . Did you complete the repair? | Go to Step 21 | -- | ||||||
19 | Replace the inoperative high beam headlamp. Refer to Headlamp Assembly or Headlamp Bulb Replacement . Did you complete the replacement? | Go to Step 21 | -- | ||||||
20 | Replace the BCM. Refer to Control Module References for replacement, setup, and programming. | Go to Step 21 | -- | ||||||
21 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |