P0724

P0724 00

Brake Light Switch Circuit. Open/Short To B+.







Fault symptom
Check Engine (OBD II).
Cruise control not working.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Battery voltage must be between 11 - 16 V.
Engine running.

Fault criteria:
When vehicle speed increases from 3 - 40 km/h (2 - 25 mph) within a period of 2 - 12 sec. when read value on the input is "ON".
A DTC is generated if this occurs 4 consecutive times.

Dependent
None

System reaction to a fault:
Cruise control switched off.

OK report:
Status change for the brake pedal switch has occurred.

Fault handling:
Type III
(See Description of On-Board Diagnostics/Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:
Test value:
- Brake Light Switch