DTC C0040-64: Brake Switch: Notes
DETECTION CONDITION AND POSSIBLE CAUSE
| DTC |
C0040:64 |
Brake switch |
| DETECTION CONDITION |
- Brake switch ON signal is input for 6 min or more when driving at a vehicle speed of 20 km/h {12 mph} or more.
- A brake switch ON signal is not input when the brake fluid pressure sensor signal reaches the specified value.
|
| FAIL-SAFE FUNCTION |
- Illuminates the TCS/DSC indicator light.
- Tire pressure monitoring system warning light illuminates after flashes.
- Inhibits the brake assist control, hill launch assist (HLA), and TPMS controls.
|
| POSSIBLE CAUSE |
- Open or short circuit in wiring harness between the brake switch and PCM terminal 2G
- Brake switch malfunction
- Poor connection at connectors (female terminal)
|
 Courtesy of MAZDA MOTORS CORP.
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