GM Service Manual Online
For 1990-2009 cars only

Step

Action

Values

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

  1. Connect a scan tool.
  2. Check for engine control diagnostic trouble codes (DTCs).

Is the vehicle speed sensor DTC set?

--

Go to Diagnostic Trouble Code (DTC) List - Vehicle

Go to Step 2

2

  1. Turn the ignition OFF.
  2. Disconnect the engine control module (ECM) connector if equipped with an automatic transmission or the transmission control module (TCM) if equipped with an automatic transmission.
  3. Remove the instrument cluster.
  4. Check continuity between the ECM connector terminal 21 (for the 0.8 L engine) or terminal 51 (for the 1.0 L engine) or the TCM connector terminal B12 and the instrument panel cluster (IPC) terminal 15.

Does the ohmmeter indicate the specified value?

0ohms

Go to Step 4

Go to Step 3

3

Repair the open circuit between the ECM connector terminal 21 (for the 0.8 L engine) or terminal 51 (for the 1.0 L engine) or the TCM connector terminal B12 and the instrument panel cluster (IPC) terminal 15.

Is the repair complete?

--

System OK

--

4

Replace the speedometer.

Is the repair complete?

--

Go to Diagnostic System Check - Vehicle

--