Does the PID read On?
Yes | GO to A9 |
|---|
No | GO to A8 |
|---|
A8 CHECK THE BPP (BRAKE PEDAL POSITION) SWITCH CIRCUIT FOR VOLTAGE AT THE PCM (POWERTRAIN CONTROL MODULE)
Ignition OFF.
Disconnect PCM C1551B .
While applying the brake pedal, measure:
Positive Lead | Measurement / Action | Negative Lead |
C1551B-66 | Ground |
Is the voltage greater than 11 volts?
Yes | GO to A28 |
|---|
No | REPAIR the circuit. |
|---|
A9 CHECK BCM (BODY CONTROL MODULE) IGN_SW_STATE PID (PARAMETER IDENTIFICATION)
Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs).
Make sure the transmission is in PARK or NEUTRAL.
Monitor the BCM PID IGN_SW_STATE while pressing the engine start/stop switch and the brake pedal.
Does the PID change from Off to Start when the ignition switch - push button start and brake pedal are pressed?
Yes | GO to A10 |
|---|
No | DIAGNOSE No power in ON. REFER to: Steering Wheel and Column Electrical Components . |
|---|
A10 CHECK THE PCM (POWERTRAIN CONTROL MODULE) IN GEAR-TRANSMISSION IS APPLYING A LOAD TO ENGINE (IN_GEAR) PID (PARAMETER IDENTIFICATION)
Using a diagnostic scan tool, view the PCM Parameter Identifications (PIDs).
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.