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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1322 (Lighting Systems) >> Diagnostic Information and Procedures >> Turn Signal Lamps and/or Indicators Inoperative

Turn Signal Lamps and/or Indicators Inoperative

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Turn Signal Lamps and/or Indicators Inoperative

Step Action Yes No
Schematic Reference: Exterior Lights Schematics 
1 Did you review the Lighting System Description and Operation and perform the necessary inspections? Go to Step 2  Go to Symptoms - Lighting Systems 
2 Verify that the turn signal lamps and/or indicators are inoperative.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Test cavity 6 of the turn signal/headlamp switch for continuity to ground. Refer to Circuit Testing in Wiring Systems.
Is a ground present?
Go to Step 4  Go to Step 5 
4 Test cavity 1 of the flasher relay for battery positive voltage. Refer to Circuit Testing in Wiring Systems.
Is voltage present?
Go to Step 6  Go to Step 7 
5 Repair open in the ground circuit between cavity 6 of the turn signal/headlamp switch and G200. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 8  -
6 Replace the flasher relay.
Did you complete the repair?
Go to Step 8  -
7 Repair open or short to ground in the flasher relay supply voltage circuit. Refer to Circuit Testing in Wiring Systems.
Did you complete the repair
Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3