Pinpoint Test DW: Heated Oxygen Sensor (Ho2S): Introduction
WARNING:
WHILE CONDUCTING TESTS ON A HOT ENGINE TAKE ALL SAFETY PRECAUTIONS TO PREVENT SKIN CONTACT WITH HOT ENGINE COMPONENTS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
This pinpoint test is intended to diagnose the following:
- exhaust leaks
- HO2S (9G444)
- harness circuits: HO2S11, HO2S12, HO2S22, HTR12, HTR22, VPWR and SIGRTN
- PCM (12A650)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| EcoSport | A | 1 2 3 4 |
HTR11 VPWR SIGRTN HO2S11 |
| All other vehicles | B | 2 1 3 4 |
HTR11 VPWR SIGRTN HO2S11 |
The pin numbering for the connector is in reference to the connector lock tab. Not all connector key combinations are show.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental 2.0L, Edge 2.0L, Escape/Kuga 1.5L, Expedition, Explorer 2.3L, Focus 1.0L, Focus 2.3L, Ford GT, Fusion 1.5L, MKX 2.0L, Navigator |
A | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| EcoSport, F-150, Mustang 2.3L, Mustang 5.0L |
A | 1 2 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| Fiesta GTDI 1.6L | B | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| Fiesta TiVCT 1.6L | C | 1 2 4 3 |
HTR12 VPWR SIGRTN HO2S12 |
| KA 1.5L | C | 2 1 4 3 |
HTR12 VPWR SIGRTN HO2S12 |
| All other vehicles | D | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
The pin numbering for the connector is in reference to the connector lock tab. Not all connector key combinations are shown.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Expedition, Ford GT, Navigator |
A | 2 1 3 4 |
HTR22 VPWR SIGRTN HO2S22 |
| F-150, Mustang 5.0L |
A | 1 2 3 4 |
HTR22 VPWR SIGRTN HO2S22 |
| All other vehicles | B | 2 1 3 4 |
HTR22 VPWR SIGRTN HO2S22 |
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental 2.7L, Continental 3.0L, Edge 2.7L, Explorer GTDI 3.5L, Flex GTDI 3.5L, Ford GT, Fusion 2.7L, MKT 3.5L, MKX 2.7L, MKZ 3.0L, Taurus GTDI 3.5L, Transit 3.5L |
198 PIN | B61 B1 B37 B56 B38 B57 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| Continental 3.7L, E-Series, Edge 3.5L, Explorer TiVCT 3.5L, Explorer 3.7L, F-Series Super Duty 6.2L, Flex TiVCT 3.5L, MKT 3.7L, MKX 3.7L, Motorhome/Stripped Chassis/Step Van, Mustang 5.2L, Taurus TiVCT 3.5L, Taurus 3.7L, Transit 3.7L |
198 PIN | E83 E78 B90 B91 B71 B72 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| EcoSport 1.0L Manual Transmission, Fiesta 1.0L, Fiesta GTDI 1.6L |
198 PIN | B1 B37 B57 |
HTR12 SIGRTN HO2S12 |
| EcoSport 1.5L Automatic Transmission | 198 PIN | E92 E93 B53 B72 B51 B70 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| EcoSport 1.5L Manual Transmission | 112 PIN | E49 E50 E1 E14 E2 E29 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| Escape/Kuga 1.5L | 198 PIN | B100 B73 B74 |
HTR12 SIGRTN HO2S12 |
| Escape/Kuga 2.5L | 198 PIN | E92 B71 E72 |
HTR12 SIGRTN HO2S12 |
| Expedition, F-150 3.5L, Navigator |
198 PIN | B78 B1 B94 B95 B75 B76 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| F-150 2.7L, F-150 3.3L, F-150 5.0L, Mustang 5.0L |
306 PIN | T16 T77 T85 T26 T84 T10 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| F-650/F-750, F-Series Super Duty 6.8L |
198 PIN | E78 B71 B72 |
HTR12 SIGRTN HO2S12 |
| Fiesta TiVCT 1.6L | 128 PIN | E35 E9 E21 |
HTR12 SIGRTN HO2S12 |
| Focus GDI 2.0L | 154 PIN | B20 B21 B48 |
HTR12 SIGRTN HO2S12 |
| Focus GTDI 2.0L | 198 PIN | B1 B37 B56 |
HTR12 SIGRTN HO2S12 |
| Fusion 2.5L, Transit Connect |
198 PIN | E92 B71 B72 |
HTR12 SIGRTN HO2S12 |
| KA | 128 PIN | E36 E20 E8 E19 E7 E20 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| MKC | 198 PIN | B1 B38 B56 |
HTR12 SIGRTN HO2S12 |
| Mustang 2.3L | 198 PIN | E81 E13 E26 |
HTR12 SIGRTN HO2S12 |
| Ranger | 128 PIN | E47 E23 E9 E20 E6 E21 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| All other vehicles | 198 PIN | B1 B38 B57 |
HTR12 SIGRTN HO2S12 |