Pinpoint Test DW: Heated Oxygen Sensor (HO2S): Introduction
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO APPROPRIATE FIRE SUPPRESSION ARTICLE FOR IMPORTANT SAFETY WARNINGS
. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
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:
- HO2S/O2S (9F472)
- HO2S/O2S (9G444)
- harness circuits: HO2S, HO2S Heater, VPWR, and SIGRTN
- powertrain control module (PCM) (12A650)
The pin numbering for the connector is in reference to the connector lock tab. Not all connector key combinations are shown in illustration.
The pin numbering for the connector is in reference to the connector lock tab. Not all connector key combinations are shown in illustration.
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PIN REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series 4.6L, E-Series 5.4L, Expedition, F-150, Navigator |
190-Pin | T16 T18 T20 T48 B67, B68 B58, E64, T40 |
HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Edge, MKX |
190-Pin | E29 E69 E28 E70 E23 E1 E24 E2 B51, B52, B53 B58, E58 |
HO2S11 HTR11 HO2S21 HTR21 HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Escape/Mariner 3.0L | 190-Pin | E8 E69 E9 E70 T29 T49 T40 T48 B67, B68 B56, E49, T41 |
HO2S11 HTR11 HO2S21 HTR21 HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Escape/Mariner 2.5L, Fusion 2.5L, Milan 2.5L |
190-Pin | E8 E69 T29 T49 B67, B68 B56, E49, T41 |
HO2S11 HTR11 HO2S12 HTR12 VPWR SIGRTN |
| F-Series Super Duty 6.8L Narrow frame | 170 Pin | E28 E69 E29 E70 B14 B38 B35, B36 B41, E58, T41 |
HO2S11 HTR11 HO2S21 HTR21 HO2S12 HTR12 VPWR SIGRTN |
| Flex 4V 3.5L, MKS 3.7L, Taurus 4V 3.5L |
190-Pin | E23 E1 E24 E2 B51, B52, B53 B58, E58 |
HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L |
190-Pin | T29 T48 T40 T49 B35, B36, B51 B56, E49 |
HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Focus, Transit Connect |
190-Pin | E11 E52 T16 T18 B67, B68 B58, E64, T40 |
HO2S11 HTR11 HO2S12 HTR12 VPWR SIGRTN |
| Fusion 3.0L, Milan 3.0L |
190-Pin | T29 T49 T40 T48 B67, B68 B56, E49, T41 |
HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Fusion 3.5L, MKZ |
140 Pin | E29 E69 E28 E70 E3 E23 E4 E24 B51, B52 B58, E58 |
HO2S11 HTR11 HO2S21 HTR21 HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| MKT 3.7L | 190-Pin | E23 E1 E24 E2 B51, B52, B53 B58, E58, T43 |
HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |
| Ranger 2.3L | 170 Pin | E28 E69 T24 T47 B35, B36 B41, E58, T41 |
HO2S11 HTR11 HO2S12 HTR12 VPWR SIGRTN |
| All other vehicles | 170 Pin | E28 E69 E29 E70 T24 T47 T25 T48 B35, B36 B41, E58, T41 |
HO2S11 HTR11 HO2S21 HTR21 HO2S12 HTR12 HO2S22 HTR22 VPWR SIGRTN |