All PFI & Ma PFI Models
PFI SERVICE CODE DEFINITIONS
| Service Code | Test Condition(s) | Definition | |
|---|---|---|---|
| 11 | KOEO/KOER/ CONTINUOUS | System Pass | |
| 12 | KOER | RPM unable to achieve Self-Test upper limit | |
| 13 | KOER | RPM unable to achieve Self-Test lower limit | |
| 14 | CONTINUOUS | PIP ckt failure | |
| 15 | KOEO | ECA Read Only Memory (ROM) Test Failed | |
| 16 | KOER | Idle RPM High with ISC retracted (OFF) | |
| 17 | KOER | Idle RPM Low with ISC retracted (OFF) | |
| 18 | KOER | SPOUT ckt open | |
| 18 | CONTINUOUS | IDM/IOM ckt failure/SPOUT ckt grounded | |
| 19 | KOEO | Failure in ECA internal voltage | |
| 19 | KOER | RPM dropped too low during ISC off test | |
| 19 | CONTINUOUS | CID ckt failure | |
| 21 | KOER/KOEO | ECT sensor out of Self-Test Range | |
| 22 | KOEO/KOER/ CONTINUOUS | BP sensor input is out of Self-Test Range | |
| 23 | KOEO/KOER | TP sensor input is out of Self-Test Range | |
| 24 | KOER/KOEO | ACT sensor input is out of Self-Test Range | |
| 25 | KOER | Knock sensor input is out of Self-Test Range | |
| 26 | KOEO/KOER | MAF sensor is out of Self-Test range | |
| 28 | KOEO/KOER | VAT sensor out of Self-Test range | |
| 29 | CONTINUOUS | Insufficient input from VSS | |
| 31 | KOEO/KOER/ CONTINUOUS | EVR, EVP or PFE ckt is below minimum range | |
| 32 | KOEO/KOER/ CONTINUOUS | EVP or PFE ckt voltage low | |
| 33 | KOER/CONTINUOUS | EGR valve opening not detected | |
| 34 | KOEO | PFE sensor voltage out of range | |
| 34 | KOER/CONTINUOUS | PFE sensor voltage high | |
| 35 | KOEO/KOER/ CONTINUOUS | EVP/PFE ckt above max. voltage | |
| 39 | CONTINUOUS | AXOD lock-up failed | |
| 41 | KOER | HEGO sensor ckt indicates lean | |
| 41 | CONTINUOUS | No HEGO switching detected - indicates lean | |
| 42 | KOER/CONTINUOUS | HEGO sensor ckt indicates rich | |
| 43 | CONTINUOUS | HEGO lean at wide open throttle | |
| 44 | KOER | Thermactor air system inoperative (right side) | |
| 45 | CONTINUOUS | Coil No. 1 primary ckt failure | |
| 46 | CONTINUOUS | Coil No. 2 primary ckt failure | |
| 47 | KOER | Measured airflow low at base idle | |
| 48 | CONTINUOUS | Coil No. 3 primary ckt failure | |
| 49 | CONTINUOUS | SPOUT signal defaulted to 10 degrees BTDC/SPOUT ckt open | |
| 51 | |||
| 3.0L SHO PFI | KOEO/CONTINUOUS | ECT indicated 254°F/ECT sensor ckt grounded | |
| All Others | KOEO/CONTINUOUS | ECT indicated -40°F/ECT sensor ckt open | |
| 52 | KOEO | PSPS ckt is always open | |
| 52 | KOER | PSPS ckt always staying open or closed | |
| 53 | KOEO/CONTINUOUS | TP sensor input is greater than Self-Test maximum | |
| 54 | KOEO/CONTINUOUS | ACT sensor -40°F ckt open | |
| 56 | KOEO/CONTINUOUS | MAF ckt above maximum voltage | |
| 57 | CONTINUOUS | AXOD Neutral Pressure Switch (NPS) ckt failed open | |
| 58 | KOEO/CONTINUOUS | VAT indicated -40°F sensor ckt open | |
| 59 | |||
| 3.0L SHO PFI | KOEO/CONTINUOUS | Low speed fuel pump ckt open (battery to ECA) | |
| All Others | KOEO | AXOD 4/3 Pressure Switch ckt failed closed | |
| All Others | CONTINUOUS | AXOD 4/3 Pressure Switch ckt failed open | |
| 61 | KOEO/CONTINUOUS | ECT indicated 254°F ckt grounded | |
| 62 | CONTINUOUS | AXOD 4/3 or 3/2 Pressure Switch ckt grounded | |
| 63 | KOEO/CONTINUOUS | TP sensor input is less than Self-Test minimum | |
| 64 | KOEO/CONTINUOUS | ACT 254°F sensor input is less than Self-Test minimum/ckt grounded | |
| 65 | CONTINUOUS | Never went to closed loop fuel | |
| 66 | KOEO/CONTINUOUS | MAF ckt below minimum voltage | |
| 67 | KOEO | Neutral Drive Switch (NDS) ckt open; A/C on | |
| 67 | CONTINUOUS | Clutch switch ckt failure | |
| 68 | KOEO/CONTINUOUS | VAT indicated 245°F ckt grounded | |
| 69 | KOEO | AXOD 3/2 Pressure Switch ckt failed closed | |
| 69 | CONTINUOUS | AXOD 3/4 Pressure Switch ckt failed open | |
| 70 | CONTINUOUS | ECA Data Communications Link (DCL) ckt failure | |
| 71 | CONTINUOUS | Software re-initialization detected | |
| 72 | KOER | Insufficient MAF or MAP change during Dynamic Response Test | |
| 73 | KOER | Insufficient throttle position output change during Dynamic Response Test | |
| 74 | KOER | Brake ON/OFF (BOO) switch ckt failure (not activated during Self-Test) | |
| 75 | KOER | Brake ON/OFF (BOO) switch ckt closed/ECA input open | |
| 77 | KOER | Brief WOT not sensed during Self-Test/Operator error | |
| 79 | KOEO | A/C On/Defrost on during Self-Test | |
| 81 | KOEO | IAS ckt failure | |
| 82 | KOEO | Air Management 1 (AM1) Ckt failure | |
| 83 | |||
| 3.0L SHO PF | KOEO/CONTINUOUS | Low speed primary fuel | |
| All Others | KOEO | High Speed Electro Drive Fan (HEDF) ckt failure | |
| 84 | KOER/CONTINUOUS | EGR Vacuum Regulator (EVR) ckt failure | |
| 85 | KOEO | Canister Purge (CANP) ckt failure | |
| 87 | KOEO/KOER/ CONTINUOUS | Fuel pump primary ckt failure | |
| 88 | KOEO | Electro Drive Fan (EDF) ckt failure | |
| 89 | KOEO | Lock-Up Solenoid (LUS) ckt failure | |
| 91 | KOER | HEGO sensor indicates lean (front/left) | |
| 91 | CONTINUOUS | No HEGO switching detected (front/left) | |
| 92 | KOER | HEGO sensor indicates rich (front/left) | |
| 94 | KOER | Thermactor air system inoperative (left side) | |
| 95 | KOEO/CONTINUOUS | Fuel pump secondary ckt failure, open/ECA to motor | |
| 96 | KOEO/CONTINUOUS | Fuel pump secondary ckt failure, open/Battery to ECA | |
| 98 | KOER | Hard fault is present | |
| 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 | |