Pinpoint Test QE: Electronic Throttle Control (ETC) System: Introduction
NOTE:
Diagnose and repair the following diagnostic trouble codes (DTCs) through
DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS
, and the Workshop Manual respectively before entering this pinpoint test:
- C1165
- P0102-P0104
- P0106-P0108
- P0236-P0238
- P0321
- P0715
- P0720
- P0731-P0735
- P2227-P2229
- 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.
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PIN REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, Grand Marquis, Ranger, Town Car |
170 Pin | B35, B36 | VPWR |
| E-Series 6.8L, Explorer, Explorer SportTrac, F-Series Super Duty, Mountaineer, Mustang |
170 Pin | B35, B36 B37 |
VPWR PCMRC |
| Edge, Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, MKX, Taurus 4V 3.5L |
190-Pin | B51, B52, B53 B8 |
VPWR PCMRC |
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L |
190-Pin | B35, B36, B51 B38 |
VPWR PCMRC |
| Fusion 3.5L, MKZ |
140 Pin | B51, B52 B35 |
VPWR PCMRC |
| All other vehicles | 190-Pin | B67, B68 B38 |
VPWR PCMRC |