3.0L PFI (Probe) Service Code Definitions
3.0L PFI (PROBE) SERVICE CODE DEFINITIONS
| Service Code | Test Condition(s) | Definition |
|---|---|---|
| 111 | KOEO/KOER/ CONTINUOUS | System Pass |
| 112 | KOEO/CONTINUOUS | ACT sensor circuit grounded. |
| 113 | KOEO/CONTINUOUS | ACT sensor circuit open. |
| 114 | KOEO/KOER | ACT sensor circuit is out of self-test range. |
| 116 | KOER | ECT sensor input is out of Self-Test range. |
| 117 | KOEO/CONTINUOUS | ECT circuit grounded |
| 118 | KOEO/CONTINUOUS | ECT circuit open |
| 121 | KOEO/KOER CONTINUOUS | TP sensor input is out of Self-Test range. |
| 122 | KOEO/CONTINUOUS | TP sensor input is less than Self-Test minimum voltage. |
| 123 | KOEO/CONTINUOUS | TP sensor input is greater than Self-Test maximum voltage. |
| 126 | KOEO/KOER/ CONTINUOUS | MAP sensor input is out of Self-Test range. |
| 129 | KOER | Insufficient MAF input change during Dynamic Response Test. |
| 144 | CONTINUOUS | No HEGO switching detected. |
| 167 | KOER | Insufficient TP input change during Dynamic Response Test. |
| 171 | CONTINUOUS | Lack of HEGO switching, system at adaptive limits (Rear Side). |
| 172 | KOER/CONTINUOUS | HEGO sensor circuit indicates system always lean (Rear Side). |
| 173 | KOER/CONTINUOUS | HEGO sensor circuit indicates system always rich (Rear Side). |
| 175 | CONTINUOUS | Lack of HEGO switching,fuel system at adaptive limits (Rear Side). |
| 176 | CONTINUOUS | HEGO sensor circuit indicates system always lean (Front Side). |
| 177 | CONTINUOUS | HEGO sensor circuit indicates system always rich (Front Side). |
| 179 | CONTINUOUS | Fuel system at part throttle lean adaptive limit, system rich (Rear Side). |
| 181 | CONTINUOUS | Fuel system at part throttle rich adaptive limit, system lean (Rear Side). |
| 182 | CONTINUOUS | Fuel system at idle lean adaptive limit, system rich (Rear Side). |
| 183 | CONTINUOUS | Fuel system at idle lean rich adaptive limit, system lean (Rear Side). |
| 188 | CONTINUOUS | Fuel system at part throttle lean adaptive limit, system rich (Front Side). |
| 189 | CONTINUOUS | Fuel system at part throttle rich adaptive limit, system lean (Front Side). |
| 191 | CONTINUOUS | Fuel system at idle lean adaptive limit, system rich (Front Side). |
| 192 | CONTINUOUS | Fuel system at idle rich adaptive limit, system lean (Front Side). |
| 211 | CONTINUOUS | Profile Ignition Pickup PIP) circuit failure. |
| 212 | CONTINUOUS | Loss of tachometer/IDM input to EEC processor. |
| 213 | KOER | EEC processor spark output (SPOUT) circuit open. |
| 326 | KOER/CONTINUOUS | PFE sensor circuit voltage lower than expected. |
| 327 | KOEO/KOER/ CONTINUOUS | PFE sensor circuit voltage below Self-Test minimum. |
| 332 | KOER/CONTINUOUS | Insufficient EGR flow detected. |
| 335 | KOEO | PFE sensor voltage out of Self-Test range. |
| 336 | KOER/CONTINUOUS | PFE sensor circuit higher than expected. |
| 337 | KOEO/KOER/ CONTINUOUS | PFE sensor voltage above Self-Test maximum. |
| 411 | KOER | Cannot control RPM during KOER low RPM check. |
| 412 | KOER | Cannot control RPM during KOER high RPM check. |
| 452 | CONTINUOUS | Insufficient input from the Vehicle Speed Sensor (VSS). |
| 511 | KOEO | ECC processor Read Only Memory (ROM) test failure. |
| 512 | CONTINUOUS | EEC processor Keep Alive Memory (KAM) test failure. |
| 513 | KOEO | Failure in EEC processor internal voltage. |
| 519 | KOEO | Power Steering Pressure Switch (PSPS) circuit open. |
| 521 | KOER | Power Steering Pressure Switch (PSPS) circuit did not change states. |
| 525 | KOEO | Vehicle was either in gear or AC was on during Self-Test. |
| 528 | CONTINUOUS | Clutch Engage switch circuit failure/not actuated during KOER. |
| 538 | KOER | Insufficient RPM change during KOER Dynamic Response Test. |
| 542 | KOEO/CONTINUOUS | Fuel pump circuit open, EEC processor to motor ground. |
| 543 | KOEO/CONTINUOUS | Fuel pump circuit open, battery to EEC processor. |
| 558 | KOEO | Electronic Vacuum Regulator (EVR) circuit failure. |
| 563 | KOEO | High Speed Electro Drive Fan HEDF) circuit failure. |
| 564 | KOEO | Electro Drive Fan (EDF) circuit failure. |
| 565 | KOEO | Canister purge circuit failure. |
| 998 | KOER | Hard fault present FMEM mode). |
| NO CODES | Unable to initiate Self-Test or unable to output Self-Test codes. | |
| CODES NOT LISTED | Service codes displayed are not applicable to vehicle being tested. | |