Headlamps Inoperative - Low Beams (Norway/Sweden)
Headlamps Inoperative - Low Beams (Norway/Sweden)
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Headlights/Daytime Running Lights (DRL) Schematics (Norway/Sweden)
or Headlights/Daytime Running Lights (DRL) Schematics (Domestic)
or Headlights/Daytime Running Lights (DRL) Schematics (Europe/Japan) Connector End View Reference: Lighting Systems Connector End Views or Body Control System Connector End Views |
|||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Are both low beam headlamps inoperative? | Go to Step 9 | Go to Step 4 |
| 4 | Is the right low beam headlamp inoperative? | Go to Step 7 | Go to Step 5 |
| 5 |
|
Go to Step 6 | Go to Step 25 |
| 6 | Connect a test lamp between the supply voltage circuit of the left low beam headlamp and the ground circuit of the left low beam headlamp. Does the test lamp illuminate? |
Go to Step 22 | Go to Step 27 |
| 7 |
|
Go to Step 8 | Go to Step 15 |
| 8 | Connect a test lamp between the supply voltage circuit of the right low beam headlamp and the ground circuit of the right low beam headlamp. Does the test lamp illuminate? |
Go to Step 22 | Go to Step 27 |
| 9 |
|
Go to Step 10 | Go to Step 16 |
| 10 | With a scan tool, command the HDLP LO BM relay ON and OFF. Do hear a click when you command the HDLP LO BM relay ON and OFF? |
Go to Step 13 | Go to Step 11 |
| 11 |
|
Go to Step 12 | Go to Step 19 |
| 12 |
|
Go to Step 21 | Go to Step 18 |
| 13 |
|
Go to Step 14 | Go to Step 26 |
| 14 | Connect a 20 amp fused jumper between the battery positive voltage circuit of the HDLP LO BM relay switch and the supply voltage circuit of the low beam headlamps. Do the low beam headlamps illuminate? |
Go to Step 21 | Go to Step 27 |
| 15 | Test for an open or short to ground in the supply voltage circuit of the right low beam headlamp. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 32 | Go to Step 24 |
| 16 | Test for an open or high resistance in the headlamps on signal circuit of the headlamp switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 32 | Go to Step 17 |
| 17 | Test for an open or high resistance in the ground circuit of the headlamp switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 32 | Go to Step 20 |
| 18 | Test for an open or high resistance in the control circuit of the HDLP LO BM relay. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 32 | Go to Step 23 |
| 19 | Test for an open or high resistance in the supply voltage circuit of the HDLP LO BM relay coil. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 32 | Go to Step 23 |
| 20 | 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 32 | Go to Step 28 |
| 21 | Inspect for poor connections at the HDLP LO BM 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 32 | Go to Step 29 |
| 22 | Inspect for poor connections at the inoperative low beam headlamp. 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 32 | Go to Step 30 |
| 23 | 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 32 | Go to Step 31 |
| 24 | Repair a short to ground in the DRL supply voltage circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 32 | - |
| 25 | Repair an open or short to ground in the supply voltage circuit of the left low beam headlamp. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 32 | - |
| 26 | Repair an open or high resistance in the battery positive voltage circuit of the HDLP LO BM relay switch. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 32 | - |
| 27 | Repair an open or high resistance in the ground circuit of the low beam headlamps. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 32 | - |
| 28 | Replace the headlamp switch. Refer to Headlamp Switch Replacement (LHD)
. Did you complete the replacement? |
Go to Step 32 | - |
| 29 | Replace the HDLP LO BM relay. Refer to Relay Replacement (Attached to Wire Harness)
or Relay Replacement (Within an Electrical Center)
in Wiring Systems. Did you complete the replacement? |
Go to Step 32 | - |
| 30 | Replace the inoperative low beam headlamp. Refer to Headlamp Bulb Replacement
. Did you complete the replacement? |
Go to Step 32 | - |
| 31 |
IMPORTANT:
Perform the setup procedure for the Dash Integration Module (DIM). Refer to Body Control Module (BCM) Programming/RPO Configuration (IPM)
or Body Control Module (BCM) Programming/RPO Configuration (DIM)
in Body Control System. Replace the DIM. Refer to Dash Integration Module Replacement (LHD)
or Dash Integration Module Replacement (RHD)
in Body Control System.Did you complete the replacement? |
Go to Step 32 | - |
| 32 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |