Pinpoint Tests H: Fuel Control: 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:
- HO2S (9G444)
- universal HO2S (9Y460)
- fuel injectors (9F593)
- harness circuits: HO2S12, HO2S22, HTR12, HTR22, SIGRTN, UO2SPC and VPWR
- vacuum systems
- PCM (12A650)
For additional information on heated oxygen sensor (HO2S), refer to Catalyst And Exhaust Systems.
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, 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 |
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, 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 |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Bronco Sport 2.0L, Corsair, Edge 2.0L, Escape/Kuga 2.0L, Escape/Kuga 2.5L, Explorer 2.3L, Explorer 3.3L, F-150 3.3L, F-150 5.0L, Mustang 5.0L, Mustang 5.2L Supercharged, Nautilus 2.0L, Ranger, Transit TiVCT 3.5L, Transit Connect 2.0L, Transit Connect 2.5L |
A | 3 | UO2SPC |
| Mustang TiVCT 5.2L | B | 6 | UO2SPC |
| All other vehicles | C | 1 | UO2SPC |
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 | E33 B100, B101, B102 E81 E13 E26 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| Bronco Sport 2.0L | 198 PIN | E33 B100, B101, B102 E26 E55 E81 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| Continental, EcoSport 1.0L Automatic Transmission, | 198 PIN | E63 B101, B102, B103 |
UO2SPC11 |
| EcoSport 2.0L | B1 B38 B57 |
VPWR HTR12 SIGRTN HO2S12 |
|
| Corsair 2.0L, Corsair 2.3L, Escape/Kuga 2.0L | 198 PIN | E33 B100, B101, B102 E26 B55 E81 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| Corsair 2.5L, Escape/Kuga 2.5L, Transit Connect 2.5L | 198 PIN | E6 B97, B99 E92 B71 B72 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| E-Series, F-650/F-750, Motorhome/Stripped Chassis/Step Van | 306 PIN | T30 T29 B1, B16, B2 T77 T84 T10 |
UO2SPC21 UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| EcoSport 1.0L Manual Transmission | 198 PIN | E39 B101, B102, B103 B1 B37 B57 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| EcoSport 1.5L Automatic Transmission, KA 1.5L Automatic Transmission | 198 PIN | B97, B99 E92 B53 B72 |
VPWR HTR12 SIGRTN HO2S12 |
| EcoSport 1.5L Manual Transmission, KA 1.2L, KA 1.5L Manual Transmission | 112 PIN | B55, B56 E49 E1 E14 |
VPWR HTR12 SIGRTN HO2S12 |
| Edge 2.0L, Nautilus 2.0L | 198 PIN | E33 B100, B101, B102 E81 B26 E26 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| Edge 2.7L, Expedition Base, Nautilus 2.7L, Navigator Base | 306 PIN | T30 T29 T16 B28 T26 B1, B16, B2 T77 T84 T10 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| Expedition High Output, Navigator High Output | 198 PIN | E63 E62 B78 B94 B95 B101, B102, B103 B1 B75 B76 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| Explorer 2.3L | 198 PIN | E33 B100, B101, B102 E81 B55 E26 |
UO2SPC11 VPWR HTR12 SIGRTN HO2S12 |
| F-150 | 306 PIN | T57 T59 T81 T11 T26 B16, B17, B2 T77 T12 T27 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| Ford GT | 198 PIN | E61 E63 B61 B37 B56 B101, B102, B103 B1 B38 B57 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| KA 1.0L | 128 PIN | B36, E24 E36 E8 E19 |
VPWR HTR12 SIGRTN HO2S12 |
| Mustang TiVCT 5.2L | 198 PIN | E35 E36 E83 B90 B91 B1, B16, B2 E78 B71 B72 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| Ranger 2.5L | 128 PIN | B11, B12 E47 E9 E20 |
VPWR HTR12 SIGRTN HO2S12 |
| Transit GTDI 3.5L | 306 PIN | T30 T29 T16 T85 T26 B101, B102, B103 T77 T84 T10 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |
| All other vehicles | 306 PIN | T30 T29 T16 T85 T26 B1, B16, B2 T77 T84 T10 |
UO2SPC21 UO2SPC11 HTR22 SIGRTN HO2S22 VPWR HTR12 SIGRTN HO2S12 |