Turn Signal Lamps and/or Indicators Inoperative
Turn Signal Lamps and/or Indicators Inoperative
| 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 | Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Is only one turn signal lamp inoperative? | Go to Step 6 | Go to Step 4 |
| 4 | Is one or both of the turn signal indicators inoperative? | Go to Step 5 | Go to Step 7 |
| 5 |
|
Go to Step 13 | Go to Step 11 |
| 6 |
|
Go to Step 14 | Go to Step 15 |
| 7 | Do the hazard lamps operate properly? | Go to Step 8 | Go to Hazard Lamps Inoperative |
| 8 |
|
Go to Step 9 | Go to Step 10 |
| 9 | Connect the 3-amp fused jumper wire between the left turn signal switch signal circuit of the turn signal/multifunction switch and the ground circuit of the turn signal/multifunction switch. Do the left turn lamps illuminate and flash? |
Go to Step 12 | Go to Step 16 |
| 10 | Test the left turn signal switch signal circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 20 | Go to Step 13 |
| 11 | Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). 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 |
| 12 | Inspect for poor connections at the harness connector of the turn/headlamp/wiper 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 18 |
| 13 | Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 20 | - |
| 14 | Repair an open or high resistance in the ground circuit of the inoperative lamp. Refer to Circuit Testing
and Wiring Repairs
. Did you complete the repair? |
Go to Step 20 | - |
| 15 | Repair an open, high resistance, or short to ground in the inoperative turn signal supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
. Did you complete the repair? |
Go to Step 20 | - |
| 16 | Repair an open or high resistance in the ground circuit of the turn signal/multifunction switch. Refer to Circuit Testing
and Wiring Repairs
. Did you complete the repair? |
Go to Step 20 | - |
| 17 | Replace the IPC. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
Go to Step 20 | - |
| 18 | Replace the turn signal/multifunction switch. Refer to Turn Signal Multifunction Switch Replacement
. Did you complete the replacement? |
Go to Step 20 | - |
| 19 | Replace the BCM. Refer to Control Module References
for replacement, setup, and programming. 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 3 |