Pinpoint Test D : C113A:11, C113A:15: Notes

Diagnostic Overview 

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to Service Information for information regarding Ford-specific diagnostic practices.

Refer to PASSIVE ANTI-THEFT SYSTEM for schematic and connector information.

Normal Operation and Fault Conditions 

The wake up control circuit is used to wake up the PCM prior to engine cranking. The PCM needs to wake up prior to a crank request so that it has time to go through its own initialization. The wake up control circuit also powers the PATS transceiver (if equipped). The wake up control circuit is controlled by the BCM and receives voltage from the BJB. The wake up control circuit is FET protected. REFER to Multifunction Electronic Modules , Field Effect Transistor (FET) Protection.

The BCM activates the wake-up control circuit when:

• the driver door is opened.
• a remote start request is received (if equipped with factory remote start).
• the brake pedal is pressed.
• a key is inserted into the ignition (without Push Button Start)
• the ignition is in the RUN or START position.
• the ignition switch - push button start is pressed (with Push Button Start)

BCM DTC Fault Trigger Conditions 

Possible Sources 

• BCM
• PCM
• Wiring, terminals, or connectors

Visual Inspection and Diagnostic Pre-checks 

• Verify the BCM fuse 18 (10A).