GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Turn Signal Indicators Inoperative

Turn Signal Indicators Inoperative Domestic

Step

Action

Value(s)

Yes

No

1

Was the Exterior Lights System Check performed?

--

Go to Step 2

Go to Exterior Lights System Check

2
  1. Disconnect connector C200 at the steering column.
  2. Disconnect at the connector at the instrument cluster.
  3. Connect a J 39200 DMM between the instrument cluster connector, cavity B1 for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 3

Go to Step 5

3
  1. Inspect the turn indicator bulbs.
  2. Replace the turn indicator bulbs, as necessary.

Are the turn signal indicators operative?

--

Go to Exterior Lights System Check

Go to Step 4

4

Replace the instrument cluster.

Are the turn signal indicators operative?

--

Go to Exterior Lights System Check

Go to Step 5

5

Repair the open in CKT 150 (BLK) between ground G201 and the instrument cluster.

Are the turn signal indicators operative?

--

Go to Exterior Lights System Check

--

Turn Signal Indicators Inoperative Export

Step

Action

Value(s)

Yes

No

1

Was the Exterior Lights System Check performed?

--

Go to Step 2

Go to Exterior Lights System Check

2
  1. Disconnect the connector at the instrument cluster.
  2. Connect a J 39200 DMM between the instrument cluster connector cavity B1 for CKT 150 (BLK) and ground.

Is continuity present?

--

Go to Step 3

Go to Step 4

3

If both turn indicator bulbs are operative, replace the instrument cluster.

Is the repair complete?

--

Go to Exterior Lights System Check

--

4

Locate and repair the open CKT 150 (BLK) between the following components:

    • The instrument cluster
    • Ground G201

Is the repair complete?

--

Go to Exterior Lights System Check

--