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.
For DTC U0212, GO to QA11 .
For DTC U0298, GO to QA14 .
For all others, REFER to Section 3, Symptom Charts, GO to Pinpoint Test QT .
QA3 CHECK FOR VREF VOLTAGE AT THE ETBTPS SENSOR
• Ignition ON, engine OFF.
• ETBTPS connector disconnected.
• Measure the voltage between:
( + ) ETBTPS Connector, Harness Side | ( - ) ETBTPS Connector, Harness Side |
|---|---|
ETCREF | ETCRTN |
Is the voltage between 4.5 - 5.5 V?
Yes | No |
|---|---|
REFER to the Workshop Manual Section 418- 00, Module Communications Network, to diagnose the PCM does not respond to the scan tool or no high speed controller area network (CAN) communication, all modules are not responding symptom. | GO to QA4 . |
QA4 CHECK THE ISP-R VOLTAGE AT THE PCM
• Ignition OFF.
• PCM connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) PCM Connector, Harness Side | ( - ) |
|---|---|
ISP-R | Ground |
Is the voltage greater than 10.5 V?
Yes | No |
|---|---|
GO to QA5 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
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.