Turn Signal Lamps and/or Indicators Inoperative. Buick Rendezvous

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2002 🢒 Rendezvous - FWD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Turn Signal Lamps and/or Indicators Inoperative

Step	Action	Yes	No
Schematic Reference: Exterior Lights Schematics
1	Did you perform the Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Lighting Systems
2	Turn the ignition to the RUN position. Turn the turn signal switch to the TURN LEFT position and then to the TURN RIGHT position. Do the turn signal lamps and the turn signal indicators flash?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Are only the turn signal indicators inoperative?	Go to Step 5	Go to Step 4
4	Is only one turn lamp inoperative?	Go to Step 12	Go to Step 6
5	Leave the turn signal switch at the inoperative side. Using a test lamp, backprobe the control circuit of the turn signal lamp indicator at the instrument panel cluster. Does the test lamp flash?	Go to Step 10	Go to Step 11
6	Disconnect connector C201. Using a test lamp connected to a good ground, probe the turn signal battery positive voltage feed circuit. Turn the ignition switch to the RUN position. Does the test lamp illuminate?	Go to Step 7	Go to Step 13
7	Using a test lamp, probe between the turn signal battery positive voltage feed circuit and the left turn signal switch. Turn the ignition to the RUN position. Does the test lamp flash ON and OFF?	Go to Step 8	Go to Step 9
8	Inspect for poor connection at the harness connector of the hazard flasher. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct and the condition?	Go to Step 17	Go to Step 15
9	Inspect for poor connection at the harness connector of the turn signal switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct and the condition?	Go to Step 17	Go to Step 16
10	Inspect for poor connection at the harness connector of the instrument panel cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct and the condition?	Go to Step 17	Go to Step 14
11	Repair the open in the inoperative turn signal lamp indicator power supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	--
12	Repair the open in the inoperative turn signal lamp power supply or ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	--
13	Repair the open in the battery positive voltage turn signal feed circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 17	--
14	Replace the instrument panel cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console. Did you complete the replacement?	Go to Step 17	--
15	Replace the hazard flasher. Did you complete the replacement?	Go to Step 17	--
16	Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column. Did you complete the replacement?	Go to Step 17	--
17	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3