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 in Wiring Systems |
|||
| 1 | Did you perform the Lighting System 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 all of the turn signal lamps and indicators inoperative? | Go to Step 5 | Go to Step 4 |
| 4 | Are only the turn signal indicators inoperative? | Go to Step 20 | Go to Step 9 |
| 5 | Check the TURN SIGNALS CORN LPS fuse for an open. Is the TURN SIGNALS CORN LPS fuse open? |
Go to Step 27 | Go to Step 6 |
| 6 |
|
Go to Step 7 | Go to Step 18 |
| 7 | Connect a test lamp between the turn/hazard module supply voltage circuit of the hazard lamp/turn signal lamp flasher and the ground circuit of the hazard lamp/turn signal lamp flasher. Does the test lamp illuminate? |
Go to Step 8 | Go to Step 25 |
| 8 |
|
Go to Step 21 | Go to Step 17 |
| 9 | Are the front turn signals inoperative? | Go to Step 10 | Go to Step 14 |
| 10 |
|
Go to Step 15 | Go to Step 11 |
| 11 |
|
Go to Step 13 | Go to Step 12 |
| 12 | Test for an open or high resistance in the turn signal switch signal of the BCM. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 22 |
| 13 | Test for an open or high resistance in the turn signal lamp supply voltage circuit of the inoperative front turn signal lamp. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 37 |
| 14 |
|
Go to Step 15 | Go to Step 16 |
| 15 | Connect a test lamp between the ground circuit of the inoperative turn signal lamp and the turn signal lamp supply voltage circuit of the inoperative turn signal lamp. Does the test lamp illuminate? |
Go to Step 24 | Go to Step 30 |
| 16 | Test for an open, a high resistance or a short to ground in the turn signal lamp supply voltage circuit of the inoperative turn signal lamp. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 22 |
| 17 | Test for an open or high resistance in the turn signal flasher signal circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 22 |
| 18 | With a test lamp connected to ground, backprobe the ignition 1 voltage circuit of connector C201 that supplies the turn signal switch. Does the test lamp illuminate? |
Go to Step 19 | Go to Step 31 |
| 19 | With a test lamp connected to ground, backprobe the turn/hazard module supply voltage circuit of connector C201. Does the test lamp illuminate? |
Go to Step 32 | Go to Step 22 |
| 20 |
|
Go to Step 23 | Go to Step 26 |
| 21 | Inspect for poor connections at the harness connector of the hazard lamp/turn signal lamp flasher. 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 38 | Go to Step 34 |
| 22 | Inspect for poor connections at the turn signal 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 38 | Go to Step 33 |
| 23 | Inspect for poor connections at the Instrument Panel Cluster (IPC). 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 38 | Go to Step 35 |
| 24 | Inspect for poor connections at the inoperative turn signal lamp. 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 38 | Go to Step 36 |
| 25 | Repair the open or high resistance in the ground circuit of the hazard lamp/turn signal lamp flasher. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 38 | - |
| 26 | Repair an open or high resistance in the turn signal lamp supply voltage circuit of the inoperative turn signal indicator. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 38 | - |
| 27 | Test for a short to ground in the ignition 1 voltage circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 28 |
| 28 | Test for a short to ground in the turn/hazard flasher supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | Go to Step 29 |
| 29 | Repair a short to ground in the turn signal lamps supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 38 | - |
| 30 | Repair the open or high resistance in the ground circuit of the inoperative signal turn lamp. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 38 | - |
| 31 | Repair the open or high resistance in the ignition 1 voltage circuit of the turn signal switch. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | - |
| 32 | Repair the open or high resistance in the turn/hazard module supply voltage circuit. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 38 | - |
| 33 | Replace the turn signal switch. Refer to Multifunction, Turn Signal Switch Replacement
in Steering Wheel and Column. Did you complete the replacement? |
Go to Step 38 | - |
| 34 | Replace the hazard lamp/turn signal lamp flasher. Refer to Hazard and Turn Signal Flasher Replacement . Did you complete the replacement? |
Go to Step 38 | - |
| 35 | Replace the Instrument Panel Cluster (IPC). Refer to Instrument Panel Cluster (IPC) Replacement
in Instrument Panel, Gages and Console. Did you complete the repair? |
Go to Step 38 | - |
| 36 | Replace the inoperative turn signal lamp. Refer to Headlamp Assembly or Headlamp Bulb and/or Cornering, Sidemarker, Park, Turn Signal Bulb Replacement or Tail Lamp Assembly and/or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement . Did you complete the replacement? |
Go to Step 38 | - |
| 37 |
IMPORTANT:
Preform the set up procedures for the Body Control Module (BCM). Refer to Body Control Module (BCM) Programming/RPO Configuration
in Body Control System. Replace the Body Control Module (BCM). Refer to Body Control Module Replacement
in Body Control System.Did you complete the replacement? |
Go to Step 38 | - |
| 38 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |