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 1.6L | A | 1 2 4 3 |
HTR11 VPWR SIGRTN HO2S11 |
| All other vehicles | B | 2 1 3 4 |
HTR11 VPWR SIGRTN HO2S11 |
Heated Oxygen Sensor Bank 1, Sensor 2 (HO2S12) Connector
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 |
|---|---|---|---|
| Continental 2.0L, Edge 2.0L, Escape/Kuga 1.5L, Expedition, Explorer 2.3L, F-150 GTDI 3.5L, Focus 1.0L, Focus 2.3L, Ford GT, Fusion 1.5L, MKX 2.0L, Mustang 2.3L, Navigator |
A | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| Fiesta GTDI 1.6L | C | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| Fiesta TiVCT 1.6L | D | 1 2 4 3 |
HTR12 VPWR SIGRTN HO2S12 |
| KA 1.5L | D | 2 1 4 3 |
HTR12 VPWR SIGRTN HO2S12 |
| All other vehicles | B | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
Heated Oxygen Sensor Bank 2, Sensor 2 (HO2S22) Connector
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, F-150 GTDI 3.5L, Ford GT, Navigator |
A | 2 1 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 2.0L, Edge 2.0L, Escape/Kuga 2.0L, Explorer 2.3L, Focus 2.3L, Fusion 1.5L, Fusion 2.0L, MKT 2.0L, MKZ 2.0L, Mustang 2.3L, Taurus 2.0L |
198 PIN | B1 B38 B57 |
HTR12 SIGRTN HO2S12 |
| Continental 2.7L, Continental 3.0L, Edge 2.7L, Expedition, Explorer GTDI 3.5L, F-150 2.7L, Flex GTDI 3.5L, Ford GT, Fusion 2.7L, MKT 3.5L, MKX 2.7L, MKZ 3.0L, Navigator, Taurus GTDI 3.5L, Transit 3.5L |
198 PIN | B61 B1 B37 B56 B38 B57 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| EcoSport 2.0L Manual Transmission, EcoSport 1.6L |
80 PIN | B39 B30 B38 B49 B23 B12 |
HTR22 HTR12 SIGRTN HO2S12 SIGRTN HO2S11 |
| EcoSport 2.0L Automatic Transmission | 128 PIN | E14 E2 E41 E29 E40 E28 |
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 E73 E72 |
HTR12 SIGRTN HO2S12 |
| F-150 GTDI 3.5L | 198 PIN | B78 B1 B94 B95 B75 B76 |
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 GTDI 1.6L, Fiesta 1.0L, Focus 1.0L, MKX 2.0L |
198 PIN | B1 B37 B57 |
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, MKC |
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 |
| All other vehicles | 198 PIN | E83 E78 B90 B91 B71 B72 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |