MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Engine

Starting System

303-06C Starting System - 5.0L

2016 Mustang5.0LReference 682 / 6,619HTML edition
← Chapter contentsProcedure contents

Yes

REPAIR the circuit.

No

GO to C6

C6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) WAKE-UP SIGNAL CIRCUIT FOR AN OPEN

Ignition OFF. Measure:

Click to display connectors

Positive Lead

Measurement / Action

Negative Lead

C175B-65

C2280F-18

Is the resistance less than 3 ohms?

Yes

GO to C7

No

REPAIR the circuit.

C7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF. Disconnect and inspect all BCM connectors. Repair:

corrosion (install new connectors or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test

and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Click here to access Guided Routine (BCM).

No

The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF. Disconnect and inspect all PCM connectors. Repair:

corrosion (install new connectors or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM. REFER to: Powertrain Control Module (PCM) (303-14C Electronic Engine Controls - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Removal and Installation).

No

The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

P2535

Refer to Wiring Diagrams Cell 20 for schematic and connector information.

Normal Operation and Fault Conditions

When the ignition switch - push button start has been pressed, the PCM receives a voltage signal on the crank detect circuit. When the required inputs have been received, the PCM supplies voltage and ground to the starter relay coil. The ignition switch - push button start is part of the FCIM and cannot be serviced separately. For more information, REFER to: Starting System - System Operation and Component Description (303-06C Starting System - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Description and Operation).

DTC Fault Trigger Conditions

Source reference 682

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.