Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 3: This DTC detects an open stop lamp switch signal circuit from the stop lamp side of the splice pack to the EBCM.
- 4: The EBCM sources 5 volts on the stop lamp switch signal circuit. This small voltage has a ground path through the stop lamp bulbs. This DTC sets if the path to ground is open.
DTC C0161
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views or Lighting Systems Connector End Views |
|||
| 1 | Did you perform the ABS Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - ABS |
| 2 |
|
Go to Step 4 | Go to Step 3 |
| 3 | Test the signal circuit of the stop lamp switch for an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 7 |
| 4 | Press the brake pedal. Are all of the stoplamps OFF? |
Go to Step 5 | Go to Diagnostic Aids |
| 5 | Test the feed circuit of the stop lamps for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 6 | Test the ground circuit of the stop lamps for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Diagnostic Aids |
| 7 | Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 8 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |