Section 13 (DFI ECM Tests W/Codes)
WARNING: This page is about a different car, the 1989 Cadillac Fleetwood and 1989 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnosis & Testing
- Notes
- Diagnostic Tools
- Diagnostic Procedure
- Diagnostic Displays
- Entering Diagnostic Mode
- Trouble Code Output
- Clearing Trouble Codes
- Exiting Diagnostic Mode
- Status Light Displays (ECM)
- Code ".7.0" Entering Testing Mode
- ECM Switch Tests
- ECM Data Display
- ECM Snapshot Modes
- ECM Output Cycling
- ECM Output Override
- Diagnostic Charts
- Adjustments
- Notes
- Component Locations
- DFI System Diagnostic Charts
- DFI System Check
- Oxygen (O2) Sensor Circuit Check
- Chart A1 - "Service Now/Soon" Lights On (No Codes Set)
- Chart A2 - Inoperative "Service Now/Soon" Lights
- Chart A3 - No Start Or Stall After Start
- Chart A4A - Fuel System Diagnosis
- Chart A4B - Fuel Pressure Out Of Range Diagnosis
- Chart A5 - Injector System Diagnosis (1 Of 2)
- Chart A5 - Injector Circuit (2 Of 2)
- Chart A6 - Rich Or Lean Exhaust (Code E44 Or E45)
- Chart A7 - Open Loop Diagnosis
- Chart A8 - Rich Or Lean DRIVEABILITY Diagnosis
- Chart B1 - Restricted Exhaust Check
- Chart C1 - ECM Replacement Check
- Chart C3 - Canister Purge Diagnosis
- Set Timing Circuit Diagnosis
- Chart C4 - Electronic Spark Timing (Est) System
- Chart C6 - Air Management Diagnosis
- Chart C7 (1 Of 2) - EGR Diagnosis
- Chart C7 (2 Of 2) - EGR Diagnosis
- Chart C8 (1 Of 2) - Viscous Converter Clutch (VCC) System
- Chart C8 (2 Of 2) - Viscous Converter Clutch (VCC) System
- Self-Diagnostic System Diagnostic Charts
- Test A1 - Inoperative "Service Air Conditioning" Light
- Test B1 - Inoperative "Service Vehicle/Eng Soon" Light
- Test B2 - Inoperative "Service Vehicle/Engine Soon" Light
- Tests C1-C6 - Display Panel Diagnosis
- Hard Or Intermittent Trouble Code Diagnostic Charts
- Code E12 - No Distributor (Tach) Signal
- Code E13 - Oxygen (O2) Sensor Not Ready
- Code E14 - Shorted Coolant Sensor Circuit
- Code E15 - Open Coolant Sensor Circuit
- Code E16 - Generator Voltage Out Of Range
- Code E18 - Open Crank Signal Circuit
- Code E19 - Shorted Fuel Pump Circuit
- Code E20 - Open Fuel Pump Circuit
- Code E20 - Fuel Fuse Blown
- Code E21 - Shorted Throttle Position Sensor Circuit
- Code E22 - Open Throttle Position Sensor Circuit
- Code E23 (1 Of 2) - Est Circuit Problem
- Code E23 (2 Of 2) - Est Circuit Problem
- Code E24 - Speed Sensor Circuit Problem
- Code E26 - Shorted Throttle Switch Circuit
- Code E27 - Open Throttle Switch Circuit
- Code E28 - Open 3RD Or 4TH Gear Circuit
- Code E30 - Idle Speed Control Circuit Problem
- Code E31 - Shorted Map Sensor Circuit
- Code E32 - Open Map Sensor Circuit
- Code E34 - Map Signal Too High
- Code E37 - Shorted Mat Sensor Circuit
- Code E38 - Open Mat Sensor Circuit
- Code E39 - VCC Engagement Problem
- Code E40 - Open Power Steering Pressure Circuit
- Code E44 - Lean Exhaust Signal
- Code E45 - Rich Exhaust Signal
- Code E47 - BCM To ECM Data
- Code E48 (1 Of 2) - EGR System Fault
- Code E48 (2 Of 2) - EGR System Fault
- Code E52 - ECM Memory Reset
- Code E53 - Distributor Signal Interrupt
- Code E55 - TPS Out Of Adjustment
- Code E59 - Transmission Temperature Sensor Circuit
- Code E60 - Cruise Engaged W/ Trans In Park Or Neutral
- Code E63 - Cruise Control Speed Differential Exceeded
- Code E64 - Acceleration Too High With Cruise Engaged
- Code E65 - Coolant Temp Too High With Cruise Engaged
- Code E66 - Engine Rpm Too High With Cruise Engaged
- Code E67 - "Set/Coast" Or "Resume/ACCEL" CKTS Shorted
- ECM Input E.7.1 - Cruise Control/VCC Brake Circuit
- ECM Input E.7.2 - Throttle Switch Circuit
- ECM Input E.7.4 - Park/Neutral Switch Circuit
- ECM Input E.7.5 - Cruise On/Off Circuit
- ECM Input E.7.6 - Cruise "Set/Coast" Circuit
- ECM Input E.7.7 - "Resume/ACCEL" Circuit
- ECM Input E.7.8 - Power Steering Pressure Switch Circuit
- Wiring Diagrams