PFI & Ma PFI
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 Circuit 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 | MA PFI - SAW Circuit Failure |
| 18 | KOER | All Others - SPOUT Circuit Open |
| 18 | CONTINUOUS | IDM/IOM Circuit Failure/SPOUT Circuit Grounded |
| 19 | KOEO | Failure In ECA Internal Voltage |
| 19 | KOER | RPM Dropped Too Low During ISC Off Test |
| 19 | CONTINUOUS | CID Circuit 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 Or VAF 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 Circuit Is Below Minimum Range |
| 32 | KOEO/KOER/ CONTINUOUS | EVP Or PFE Circuit 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 Circuit Above Max. Voltage |
| 39 | CONTINUOUS | AXOD Lock-Up Failed |
| 41 | KOER | HEGO Sensor Circuit Indicates Lean |
| 41 | CONTINUOUS | No HEGO Switching Detected - Indicates Lean |
| 42 | KOER/CONTINUOUS | HEGO Sensor Circuit Indicates Rich |
| 43 | CONTINUOUS | HEGO Lean At Wide Open Throttle |
| 44 | KOER | Thermactor Air System Inoperative (Right Side) |
| 45 | CONTINUOUS | Coil No. 1 Primary Circuit Failure |
| 46 | CONTINUOUS | Coil No. 2 Primary Circuit Failure |
| 47 | KOER | Measured Airflow Low At Base Idle |
| 48 | PFI: KOER | Measured Airflow High At Base Idle |
| 48 | Except PFI:CONTINUOUS | Coil No. 3 Primary Circuit Failure |
| 49 | CONTINUOUS | SPOUT Signal Defaulted To 10 Degrees BTDC/SPOUT Circuit Open |
| 51 | KOEO/CONTINUOUS | ECT Indicated -40°F/ ECT Sensor Circuit Open |
| 52 | KOEO | PSPS Circuit Is Always Open |
| 52 | KOER | PSPS Circuit Always Staying Open Or Closed |
| 53 | KOEO/CONTINUOUS | TP Sensor Input Is Greater Than Self-Test Maximum |
| 54 | KOEO/CONTINUOUS | ACT Sensor -40°F Circuit Open |
| 56 | KOEO/CONTINUOUS | MAF Or VAF Circuit Above Max. Voltage |
| 57 | CONTINUOUS | AXOD Neutral Pressure Switch (NPS) Circuit Failed Open |
| 58 | KOEO/CONTINUOUS | VAT Indicated -40°F Sensor Circuit Open |
| 59 | KOEO | AXOD 4/3 Pressure Switch Circuit Failed Closed |
| 59 | CONTINUOUS | AXOD 4/3 Pressure Switch Circuit Failed Open |
| 61 | KOEO/CONTINUOUS | ECT Indicated 254°F Circuit Grounded |
| 62 | CONTINUOUS | AXOD 4/3 Or 3/2 Pressure Switch Circuit 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/Circuit Grounded |
| 65 | CONTINUOUS | Never Went To Closed Loop Fuel |
| 66 | KOEO/CONTINUOUS | MAF Or VAF Circuit Below Minimum Voltage |
| 67 | KOEO | Neutral Drive Switch (NDS) Circuit Open; A/C On |
| 67 | CONTINUOUS | Clutch Switch Circuit Failure |
| 68 | KOEO/CONTINUOUS | VAT Indicated 245°F Circuit Grounded |
| 69 | KOEO | AXOD 3/2 Pressure Switch Circuit Failed Closed |
| 69 | CONTINUOUS | AXOD 3/4 Pressure Switch Circuit Failed Open |
| 70 | CONTINUOUS | ECA Data Communications Link (DCL) Circuit Failure |
| 71 | CONTINUOUS | Software Re-Initialization Detected |
| 72 | PFI: CONTINUOUS | Power Interrupt/Re-Initialization Detected |
| 72 | Except PFI: 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 Circuit Failure (Not Activated During Self-Test) |
| 75 | KOER | Brake ON/OFF (BOO) Switch Circuit Closed/ECA Input Open |
| 76 | KOER | Insufficient VAF During Dynamic Response Test |
| 77 | KOER | Brief WOT Not Sensed During Self-Test/Operator ERROR |
| 79 | KOEO | A/C On/Defrost On During Self-Test |
| 81 | KOEO | IAS Circuit Failure |
| 82 | KOEO | Air Management 1 (AM1) Circuit Failure |
| 83 | KOEO | High Speed Electro Drive Fan (HEDF) Circuit Failure |
| 84 | KOER/CONTINUOUS | EGR Vacuum Regulator |
| 85 | PFI - CONTINUOUS | Adaptive Fuel Lean Limit |
| 86 | CONTINUOUS | Adaptive Fuel Rich Limit Reached |
| 87 | KOEO/KOER/CONTINUOUS | Fuel Pump Primary Circuit Failure |
| 88 | KOEO | Electro Drive Fan (EDF) Circuit Failure |
| 95 | KOEO/CONTINUOUS | Fuel Pump Secondary Circuit Failure, Open ECA To Motor |
| 96 | KOEO/CONTINUOUS | Fuel Pump Secondary Circuit 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 |