PINPOINT TEST DA: Intake Air Temperature (IAT) Sensor: Introduction
This pinpoint test is intended to diagnose the following:
- IAT sensor (12A697)
- integrated mass air flow/intake air temperature (MAF/IAT) sensor (12B579)
- harness circuits: IAT and SIGRTN
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE CONNECTOR PINS REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, E-Series 6.8L, Grand Marquis, Ranger, Town Car | 170 PIN | E26 E22 |
MAF RTN IAT |
| F-150 6.2L, F-150 5.0L | 190-PIN | B2 B47 |
MAF RTN IAT |
| F-150 3.5L | 198 PIN | B9 B75 |
SIGRTN IAT |
| F-Series Super Duty, Mustang 5.4L, Mustang 5.0L |
190-PIN | B2 B47 |
SIGRTN IAT |
| Fiesta | 128 PIN | E1 E26 |
MAF RTN IAT |
| Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, Taurus 4V 3.5L | 190-PIN | B42 B43 |
MAF RTN IAT |
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L | 190-PIN | B47 | IAT |
| Fusion 3.5L, MKZ | 140 PIN | B42 B43 |
MAF RTN IAT |
| Mustang 3.7L | 190-PIN | B41 B47 |
SIGRTN IAT |
| All other vehicles | 190-PIN | B41 B47 |
MAF RTN IAT |