Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test QE: Electronic Throttle Control (Etc) System: Introduction
- P0715
- P0720
- P0731-P0735
- P0102-P0104
- P0321
- C1165
- U1027
This pinpoint test is intended to diagnose the informational powertrain control module (PCM) DTCs.
The informational DTCs are the result of limited operating strategy (LOS) or failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of a PCM, harness, or component concern.
Circuit DTCs can be accompanied by the informational DTCs, and should be diagnosed first. Informational DTCs without circuit DTCs may or may not indicate the actual concern and should be diagnosed as a symptom.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, Grand Marquis, Ranger, Town Car |
170 Pin | B35, B36 | VPWR |
| E-Series 6.8L, Explorer, Explorer Sport Trac, F-Super Duty, Mountaineer, Mustang |
170 Pin | B35, B36 B37 |
VPWR PCMRC |
| Edge, Flex, MKS, MKX, Sable, Taurus, Taurus X |
190-Pin | B51, B52, B53 B8 |
VPWR PCMRC |
| F-150 2V 4.6L | 190-Pin | B67, B68 B40 |
VPWR PCMRC |
| Fusion, Milan, MKZ |
140 Pin | B51, B52 B35 |
VPWR PCMRC |
| All other vehicles | 190-Pin | B67, B68 B38 |
VPWR PCMRC |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.