PINPOINT TEST DA: Intake Air Temperature (IAT) Sensor: Introduction
This pinpoint test is intended to diagnose the following:
- IAT sensor (12A697)
- integrated mass airflow/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 article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series 4.6L, E-Series 5.4L, Transit Connect | 190-PIN | B41 | MAFRTN |
| B58 | SIGRTN | ||
| B47 | IAT | ||
| E-Series 6.8L | 170 PIN | E26 | MAFRTN |
| E58 | SIGRTN | ||
| E22 | IAT | ||
| Edge 2.0L, Explorer 2.0L, Focus | 154 PIN | E36 | SIGRTN |
| E10 | IAT | ||
| Expedition, F-Series Super Duty, Navigator | 190-PIN | B2 | MAFRTN |
| B2 | SIGRTN | ||
| B47 | IAT | ||
| Explorer 3.5L, F-150 3.7L | 190-PIN | B41 | MAFRTN |
| B47 | IAT | ||
| F-150 6.2L, F-150 5.0L | 190-PIN | B2 | MAFRTN |
| B47 | IAT | ||
| F-150 3.5L | 198 PIN | B75 | IAT |
| Fiesta | 128 PIN | E1 | MAFRTN |
| E1 | SIGRTN | ||
| E26 | IAT | ||
| Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, Taurus 4V 3.5L | 190-PIN | B42 | MAFRTN |
| B58 | SIGRTN | ||
| B43 | IAT | ||
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L | 190-PIN | B56 | SIGRTN |
| B47 | IAT | ||
| Fusion 3.5L, MKZ | 140 PIN | B42 | MAFRTN |
| B58 | SIGRTN | ||
| B43 | IAT | ||
| Motorhome / Stripped Chassis / Step Van | 190-PIN | B47 | IAT |
| Mustang 5.4L, Mustang 5.0L | 190-PIN | B2 | SIGRTN |
| B47 | IAT | ||
| Mustang 3.7L | 190-PIN | B41 | SIGRTN |
| B47 | IAT | ||
| All other vehicles | 190-PIN | B41 | MAFRTN |
| B56 | SIGRTN | ||
| B47 | IAT |