LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1249 (Anti-Lock Brake System) >> Diagnostic Information and Procedures >> DTC C0161: Abs/TCS Brake Switch Circuit Malfunction >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3. This DTC detects an open stoplamp switch signal circuit from the stoplamp side of the splice to the EBCM.
  2. 4. The EBCM sources 5 volts on the stoplamp switch signal circuit. This small voltage has a ground path through the stoplamp bulbs. This DTC sets if the path to ground is open.
  3. 7. With the scan tool, Test for the current state of the brake lamp switch parameter.
  4. 10. Test the stoplamp signal circuit for a short to voltage.
    Fig 1: DTC C0161 (1 Of 2)
    G01673677Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC C0161 (2 Of 2)
G01673678Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals