DFI ECM Tests W/Codes
- Diagnosis & Testing
- Introduction
- Diagnostic Tools
- Diagnostic Procedure
- Retrieving Stored Trouble Codes
- Intermittent Failure Test Procedures
- Performance Flow Charts
- ECM Trouble Code/Component Identification
- DFI System Check
- Chart A1 - No "Service Now/Soon" Light
- Chart A1 - Code B334, No "Service Now/Soon" Light (Cont.)
- Chart A2 - "Service Now/Soon" On (No Codes Present)
- Chart A3 - No Start Or Stall After Start
- Chart A4 - Fuel System Diagnosis
- Chart A5 - Injector System Diagnosis
- Chart A5 (Cont.) - Injector Circuit Tests
- Chart A6 - Open Loop Diagnosis (O2 Sensor Not Ready)
- Chart A7 - Lean Exhaust Signal
- Chart A8 - Rich Exhaust Signal
- Chart A9 - Oxygen (O2) Sensor Diagnosis
- Self-Diagnostic System Check
- Chart B1 - Inoperative Odometer
- Chart B2 - Inoperative Odometer (Cont.)
- Chart B3 - Inoperative Odometer (Cont.)
- Chart B4 - Inoperative Odometer (Cont.)
- Chart B5 - Inoperative Odometer (Cont.)
- Chart B6 - Inoperative Odometer (Cont.)
- Chart B7 - Inoperative Odometer (Cont.)
- Chart B8 - Inoperative Odometer (Cont.)
- Chart C1 - CCDIC Problem
- CHART C2 - CCDIC Problem (Cont.)
- Chart C3 - CCDIC Problem (Cont.)
- Chart C4 - CCDIC Problem (Cont.)
- Chart A - Multiple Trouble Codes (Stored Hard)
- Hard Code E012 - No Distributor (Tach) Signal
- Hard/Intermittent Code E013 - O2 Sensor Not Ready
- Hard Code E014 - Shorted Coolant Sensor Circuit
- Hard Code E015 - Open Coolant Sensor Circuit
- Hard Code EO16 - Generator Voltage Out Of Range
- Hard Code EO18 - Open Crank Signal Circuit
- Hard Code EO19 - Shorted Fuel Pump Circuit
- Hard/Intermittent Code EO20 - Open Fuel Pump CKT
- Hard/Intermittent Code EO20 (Cont.) - Fuel Fuse Blown
- Hard Code E021 - Shorted Throttle Position Sensor CKT
- Hard Code E022 - Open Throttle Position Sensor CKT
- Hard Code E023 - Est Circuit Problem
- Hard Code E024 - Speed Sensor Circuit Problem
- Hard Code EO26 - Shorted Throttle Switch CKT
- Hard Code EO27 - Open Throttle Switch Circuit
- Hard Code EO28 - Open 3RD Or 4TH Gear Circuit
- Hard Code EO28 (Cont.) - Open 3RD/4TH Gear CKT (4TH W/O 3RD)
- Hard/Intermittent Code EO30 - Idle Speed Control CKT
- Hard Code EO31 - Shorted Map Sensor Circuit
- Hard Code EO32 - Open Map Sensor Circuit
- Hard Code EO34 - Map Signal Too High
- Hard Code EO37 - Shorted Mat Sensor Circuit
- Hard Code EO38 - Open Mat Sensor Circuit
- Hard/Intermittent Code EO39 - VCC Engagement Problem
- Hard Code EO40 - Open Power Steering Pressure CKT
- Hard Or Intermittent Code EO44 - Lean Exhaust Signal
- Hard/Intermittent Code EO45 - Rich Exhaust Signal
- Code EO47 - BCM To ECM Data
- Code EO48 - EGR System Fault
- Code EO51 - Prom Error
- Code EO52 - ECM Memory Reset
- Trouble Code EO53 - Distributor Signal Interrupt
- Hard Code EO55 - TPS Out Of Adjustment
- Hard Code EO59 - VCC Temperature Sensor Circuit
- Code EI71 - Cruise Control/VCC Brake Circuit
- Code EI72 - Throttle Switch Circuit
- Code EI74 - Park/Neutral (NSBU) Switch Circuit
- Code EI78 - Power Steering Pressure Circuit
- Performance Charts
- Performance Chart 1 - ECM Replacement Check
- Performance Chart 3 - Canister Purge Control Diagnosis
- Performance Chart 4 - Est System Check
- Performance Chart 6 - Air Management Diagnosis
- Performance Chart 7 - EGR Diagnosis
- Performance Chart 8 - VCC Electrical Diagnosis
- Performance Chart 9 - EFE Diagnosis
- Wiring Diagrams