GM Service Manual Online
For 1990-2009 cars only

Instrument Cluster (IPC) System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Close all doors.
  2. Safety belt unbuckled.
  3. Gear selector in PARK.
  4. Ignition switch to START, then to ON (do not start engine).

A Bulb Check of the following is performed (the indicators illuminate briefly).

   • 

Anti-Lock Brakes

   • 

Air Bag

   • 

AWD

   • 

Battery Charge

   • 

Brake

   • 

Check Gauges

   • 

Check Oil

   • 

Service Engine Soon

   • 

Security

2

Check Service Engine Soon indicator.

Service Engine Soon indicator illuminates.

Powertrain On Board Diagnostic (OBD) System Check

3

  1. Buckle driver's safety belt.
  2. Check Fasten Safety Belt indicator.

Fasten Safety Belt indicator off.

Fasten Safety Belt Indicator/Chime Always On

3

Apply park brake.

Park brake indicator illuminates.

Brake Warning Indicator Inoperative

4

    • Operate LH turn signal.
    • Operate RH turn signal.

Turn indicators flash with turn signals.

Turn Signal Indicators Inoperative

5

Adjust instrument panel dimmer control.

IPC illumination varies.

Interior Lights Dimming System Check

6

Switch headlamps to high beam on.

High beam indicator illuminates.

7

Start engine.

    • Engine cranks and starts.
    • Speedometer displays zero.

Diagnostic System Check - Theft Deterrent

8

Check Fuel gauge.

Fuel gauge indicates correct fuel level.

9

Check Engine Temperature gauge.

Engine Temperature gauge indicates correct engine temperature.

10

Check Service Engine Soon indicator.

Service Engine Soon indicator off.

Powertrain On Board Diagnostic (OBD) System Check

11

Check Low Engine Oil indicator.

Low Engine Oil indicator off.

12

Check Battery Charge indicator.

Battery Charge indicator off.

13

Check Air Bag indicator.

Air Bag indicator off.

SIR Diagnostic System Check

14

Check ABS indicator.

ABS indicator off.

Diagnostic System Check - ABS

15

Check the Check Gauges indicator.

Check Gauges indicator off.

CHECK GAGES Indicator Always On

16

Check Traction Control indicator (if equipped).

Traction Control indicator off.

Diagnostic System Check - ABS

17

Check Security indicator.

Security indicator off.

Diagnostic System Check - Theft Deterrent

18

Cycle gear selector lever through all gear positions.

Release the park brake.

PRNDL displays the correct gear positions.

The park brake indicator turns off.

PRNDL Display Inaccurate or Inoperative

19

Drive vehicle at 48 km/h (30 mph).

Speedometer and Odometer operate properly.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.