GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2001 🢒 Firebird 🢒 Brakes 🢒 Antilock Brake System 🢒 DTC C0182

Circuit Description

The throttle position signal is used by the ASM to control the actual throttle position that is requested by the EBCM. The EBCM compares the Delivered throttle position sensor value that is sent from the ASM to the throttle position sensor value sent from the PCM over the Class 2 serial data line.

Conditions for Setting the DTC

DTC C0182 will set if the ASM delivers current greater than 18 amps to the Accelerator Control and Adjuster for more than three seconds without the cable adjuster reaching its desired position.

Action Taken When the DTC Sets
    • A malfunction DTC is stored.
    • The TCS is disabled.

Conditions for Clearing the DTC
    • Condition for DTC is no longer present and scan tool clear DTC function is used.
    • 100 ignition cycles have passed with no DTCs detected.

Diagnostic Aids

If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. This step checks if DTC C0181 is the cause for DTC C0182 for setting.

  2. This step checks if DTC C0182 is a current fault.

Step

Action

Yes

No

Schematic Reference: Antilock Brake System Schematics

1

Did you perform the Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - ABS

2

Inspect all Accelerator Control and Adjuster cables and linkages for any obvious problems that could cause binding or sticking.

Were any problems found?

Go to Step 3

Go to Step 4

3

Repair as necessary.

Is the repair complete?

Go to Step 7

--

4

Is DTC C0181 also set as a current DTC?

Go to DTC C0182

Go to Step 5

5
  1. Using a scan tool clear DTC C0182.
  2. Raise the rear of the vehicle so that both rear wheel are approximately 152 mm (6 in) off the floor.
  3. Start the engine.
  4. Using a scan tool in TCS Data List monitor the Throttle Angle
  5. Press the brake pedal.
  6. Put vehicle in gear.
  7. Release the brake pedal.
  8. Depress and hold the Accelerator pedal between 15 degrees and 45 degrees for at least four seconds.

Did DTC C0182 reset as a current DTC?

Go to Step 6

Go to Diagnostic System Check - ABS

6

Replace the Accelerator Control and Adjuster. Refer to Throttle Relaxer Assembly Replacement .

Is the replacement complete?

Go to Step 7

--

7
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK