Circuit/System Testing
IMPORTANT:
Inspect for brake lamp related DTCs and symptoms before diagnosing DTC C0136.
IMPORTANT:
A binding brake pedal or improperly adjusted brake switch can cause DTC C0136 to set. Correct any hydraulic brake symptoms before diagnosing this DTC. Refer to Symptoms - Hydraulic Brakes
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Disconnect the EBCM harness connector. Connect a test lamp between the stop lamp switch signal circuit and ground. Apply the brake.
- If the test lamp does not illuminate but the center high mounted stop lamp (CHMSL) does illuminate, repair open in the stop lamp switch signal circuit.
- If the test lamp and CHMSL does not illuminate, go to Symptoms - Lighting Systems .
- If the test lamp and CHMSL illuminates, replace the EBCM/brake pressure modulator valve (BPMV).