Pinpoint Tests 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 |
|---|---|---|---|
| Ranger | A | 2 1 3 4 |
HTR11 VPWR SIGRTN HO2S11 |
| All other vehicles | B | 1 2 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 shown.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental, Expedition, Ford GT, Motorhome/Stripped Chassis/Step Van, Navigator | A | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| F-150 2.7L, F-150 3.3L, F-150 5.0L | B | 1 2 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| Mustang TiVCT 5.2L, Ranger 2.5L | C | 2 1 3 4 |
HTR12 VPWR SIGRTN HO2S12 |
| All other vehicles | A | 1 2 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 2.7L, F-150 3.3L, F-150 5.0L | B | 1 2 3 4 |
HTR22 VPWR SIGRTN HO2S22 |
| Mustang TiVCT 5.2L | C | 2 1 3 4 |
HTR22 VPWR SIGRTN HO2S22 |
| All other vehicles | A | 1 2 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 |
|---|---|---|---|
| Bronco Sport 1.5L, Escape/Kuga 1.5L, Mustang 2.3L, Ranger 2.3L, Transit Connect 1.0L, Transit Connect 2.0L | 198 PIN | E81 E13 E26 |
HTR12 SIGRTN HO2S12 |
| Bronco Sport 2.0L | 198 PIN | E26 E55 E81 |
HTR12 SIGRTN HO2S12 |
| Continental, EcoSport 1.0L Automatic Transmission, EcoSport 2.0L | 198 PIN | B1 B38 B57 |
HTR12 SIGRTN HO2S12 |
| Corsair 2.0L, Corsair 2.3L, Escape/Kuga 2.0L | 198 PIN | E26 B55 E81 |
HTR12 SIGRTN HO2S12 |
| Corsair 2.5L, Escape/Kuga 2.5L, Transit Connect 2.5L | 198 PIN | E92 B71 B72 |
HTR12 SIGRTN HO2S12 |
| E-Series, F-650/F-750, Motorhome/Stripped Chassis/Step Van | 306 PIN | T77 T84 T10 |
HTR12 SIGRTN HO2S12 |
| EcoSport 1.0L Manual Transmission | 198 PIN | B1 B37 B57 |
HTR12 SIGRTN HO2S12 |
| EcoSport 1.5L Automatic Transmission, KA 1.5L Automatic Transmission | 198 PIN | E92 E93 B53 B72 B51 B70 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| EcoSport 1.5L Manual Transmission, KA 1.2L, KA 1.5L Manual Transmission | 112 PIN | E49 E50 E1 E14 E2 E29 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| Edge 2.0L, Nautilus 2.0L | 198 PIN | E81 B26 E26 |
HTR12 SIGRTN HO2S12 |
| Edge 2.7L, Expedition Base, Nautilus 2.7L, Navigator Base | 306 PIN | T16 T77 B28 T26 T84 T10 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| Expedition High Output, Navigator High Output | 198 PIN | B78 B1 B94 B95 B75 B76 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| Explorer 2.3L | 198 PIN | E81 B55 E26 |
HTR12 SIGRTN HO2S12 |
| F-150 | 306 PIN | T81 T77 T11 T26 T12 T27 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| Ford GT | 198 PIN | B61 B1 B37 B56 B38 B57 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| KA 1.0L | 128 PIN | E36 E20 E8 E19 E7 E20 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| Mustang TiVCT 5.2L | 198 PIN | E83 E78 B90 B91 B71 B72 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |
| Ranger 2.5L | 128 PIN | E47 E23 E9 E20 E6 E21 |
HTR12 HTR11 SIGRTN HO2S12 SIGRTN HO2S11 |
| All other vehicles | 306 PIN | T16 T77 T85 T26 T84 T10 |
HTR22 HTR12 SIGRTN HO2S22 SIGRTN HO2S12 |