Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
KC30 INSPECT THE HARNESS BETWEEN THE FUEL PUMP CONTROL MODULE AND RESTRAINTS CONTROL MODULE (RCM)
• Ignition OFF.
• Check the harness for the following:
◾ damage ◾ corrosion ◾ correct routing
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | GO to KC31 . |
KC31 CHECK THE ENS CIRCUIT FOR AN OPEN
Note: Refer to the warnings in Workshop Manual Section 501-20B, Supplemental Restraint System.
• Depower the supplemental restraint system (SRS). Refer to the Workshop Manual Section 501- 20B, Supplemental Restraint System for the Supplemental Restraint System (SRS) Depowering and Repowering procedure.
• RCM connector disconnected.
• Connect the battery ground cable.
• For Transit,
• BCM-C connector disconnected.
• Fuel Pump Control Module connector disconnected.
• For all others,
• Fuel Pump Control Module connector disconnected.
• Measure the resistance between:
( + ) Fuel Pump Control Module Connector, Harness Side | ( - ) RCM Connector, Harness Side |
|---|---|
ENS | ENS |
Is the resistance less than 5 ohms?
Yes | No |
|---|---|
GO to KC32 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
KC32 CHECK THE ENS CIRCUIT FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) Fuel Pump Control Module Connector, Harness Side | ( - ) |
|---|
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.