PINPOINT TEST DZ: Universal Heated Oxygen Sensor (HO2S): Introduction
WARNING: This page is about a different variant/trim than selected.
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.
NOTE:
Only diagnose the suspect universal HO2S indicated by the DTC.
This pinpoint test is intended to diagnose the following:
- universal HO2S (9Y460)
- harness circuits: UO2S, UO2SGREF, UO2SHTR, UO2SPC, UO2SPCT, and VPWR
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series | 190-PIN | E38 | UO2S11 |
| E39 | UO2S21 | ||
| E26 | UO2SGREF11 | ||
| E25 | UO2SGREF21 | ||
| E69 | UO2SHTR11 | ||
| E70 | UO2SHTR21 | ||
| E23 | UO2SPC11 | ||
| E24 | UO2SPC21 | ||
| E11 | UO2SPCT11 | ||
| E12 | UO2SPCT21 | ||
| Edge 3.5L, Edge 3.7L, Explorer 3.5L, F-150 3.7L, Fusion 3.0L, MKX, Mustang 3.7L | 190-PIN | E27 | UO2S11 |
| E10 | UO2S21 | ||
| E26 | UO2SGREF11 | ||
| E25 | UO2SGREF21 | ||
| E69 | UO2SHTR11 | ||
| E70 | UO2SHTR21 | ||
| E23 | UO2SPC11 | ||
| E24 | UO2SPC21 | ||
| E37 | UO2SPCT11 | ||
| E53 | UO2SPCT21 | ||
| Edge 2.0L, Explorer 2.0L, Focus | 154 PIN | E89 | UO2S11 |
| E65 | UO2SGREF11 | ||
| E72 | UO2SHTR11 | ||
| E64 | UO2SPC11 | ||
| E88 | UO2SPCT11 | ||
| Escape 3.0L | 190-PIN | E23 | UO2S11 |
| E24 | UO2S21 | ||
| E27 | UO2SGREF11 | ||
| E10 | UO2SGREF21 | ||
| E69 | UO2SHTR11 | ||
| E70 | UO2SHTR21 | ||
| E37 | UO2SPC11 | ||
| E53 | UO2SPC21 | ||
| E26 | UO2SPCT11 | ||
| E25 | UO2SPCT21 | ||
| Escape 2.5L | 190-PIN | E23 | UO2S11 |
| E27 | UO2SGREF11 | ||
| E69 | UO2SHTR11 | ||
| E37 | UO2SPC11 | ||
| E26 | UO2SPCT11 | ||
| F-150 3.5L | 198 PIN | E62 | UO2S11 |
| E64 | UO2S21 | ||
| E47 | UO2SGREF11 | ||
| E49 | UO2SGREF21 | ||
| E15 | UO2SHTR11 | ||
| E14 | UO2SHTR21 | ||
| E61 | UO2SPC11 | ||
| E63 | UO2SPC21 | ||
| E46 | UO2SPCT11 | ||
| E48 | UO2SPCT21 | ||
| Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, Taurus 4V 3.5L | 190-PIN | E18 | UO2S11 |
| E20 | UO2S21 | ||
| E19 | UO2SGREF11 | ||
| E21 | UO2SGREF21 | ||
| E69 | UO2SHTR11 | ||
| E70 | UO2SHTR21 | ||
| E4 | UO2SPC11 | ||
| E6 | UO2SPC21 | ||
| E5 | UO2SPCT11 | ||
| E7 | UO2SPCT21 | ||
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L | 190-PIN | E9 | UO2S11 |
| E27 | UO2S21 | ||
| E25 | UO2SGREF11 | ||
| E26 | UO2SGREF21 | ||
| E70 | UO2SHTR11 | ||
| E69 | UO2SHTR21 | ||
| E11 | UO2SPC11 | ||
| E13 | UO2SPC21 | ||
| E10 | UO2SPCT11 | ||
| E12 | UO2SPCT21 | ||
| Fusion 2.5L | 190-PIN | E27 | UO2S11 |
| E26 | UO2SGREF11 | ||
| E69 | UO2SHTR11 | ||
| E23 | UO2SPC11 | ||
| E37 | UO2SPCT11 | ||
| All other vehicles | 190-PIN | T4 | UO2S11 |
| T39 | UO2S21 | ||
| T15 | UO2SGREF11 | ||
| T40 | UO2SGREF21 | ||
| T24 | UO2SHTR11 | ||
| T35 | UO2SHTR21 | ||
| T29 | UO2SPC11 | ||
| T28 | UO2SPC21 | ||
| T17 | UO2SPCT11 | ||
| T16 | UO2SPCT21 |