Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM1995PICKUP R3500, 2D PICKUP, 8.0 W, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 3.9L
1995 Dodge and Ram Pickup R3500, 2D Pickup, 8.0 W, RWD, Automatic
Engine Controls - Tests W/Codes - 3.9L
1995 Dodge and Ram Pickup R3500, 2D Pickup, 8.0 W, RWD, AutomaticSECTION Engine Controls - Tests W/Codes - 3.9L
- Introduction
- Model Identification
- Self-Diagnostic System
- Inactive Trouble Code Condition
- Fuel Pressure Release
- Trouble Codes/Messages
- Connector Identification
- Self-Diagnostic Tests
- Notes
- Test TC-1A - Checking System For Trouble Codes
- Test TC-2A - No Crank Reference Signal At Pcm (DTC 11)
- Test TC-2B - No Crank Reference Signal At Pcm
- Test TC-3A - No Cam Sync Signal At Pcm (DTC 54)
- Test TC-4A - Slow Change In Idle Map Sensor Signal Or No Change In Map From Start To Run (DTC 13)
- Test TC-5A - Map Sensor Voltage Too Low (DTC 14)
- Test TC-6A - Map Sensor Voltage Too High (DTC 14)
- Test TC-7A - No Vehicle Speed Sensor Signal (DTC 15)
- Test TC-7B - No Vehicle Speed Sensor Signal
- Test TC-8A - O2S Stays At Center Or Left O2S Stays At Center (DTC 21)
- Test TC-9A - Right O2S Stays At Center (DTC 21)
- Test TC-10A - O2S Stays Above Center (Rich) Or Left O2S Stays Above Center (Rich) (DTC 52)
- Test TC-11A - Right O2S Stays Above Center (Rich) (DTC 52)
- Test TC-12A - O2S Stays Below Center (Lean) Or Left O2S Stays Below Center (Lean) (DTC 51)
- Test TC-13A - Right O2S Stays Below Center (Lean) (DTC 51)
- Test TC-14A - Left O2S Shorted To Voltage (DTC 21)
- Test TC-15A - Right O2S Shorted To Voltage (DTC 21)
- TEST TC-16A - LEFT OR RIGHT IDLE ADAPTIVE MEM AT LEAN OR RICH LIMIT (DTC 52 or 51)
- Test TC-17A - ECT Sensor Voltage Too Low (DTC 22)
- Test TC-18A - ECT Sensor Voltage Too High (DTC 22)
- Test TC-19A - Intake Air Temp Sensor Voltage Low (DTC 23)
- Test TC-20A - Intake Air Temp Sensor Voltage High (DTC 23)
- Test TC-21A - Throttle Position Sensor Voltage Low (DTC 24)
- Test TC-22A - Throttle Position Sensor Voltage High (DTC 24)
- Test TC-23A - Idle Air Control Motor Circuits (DTC 25)
- Test TC-23B - IAC Driver #1 Control Circuit
- Test TC-23C - IAC Driver #2 Control Circuit
- Test TC-23D - IAC Driver #3 Control Circuit
- Test TC-23E - IAC Driver #4 Control Circuit
- Test TC-24A - Injector Control Circuits (DTC 27)
- Test TC-24B - Injector #1 Control Circuit
- Test TC-25A - Injector #2 Control Circuit (DTC 27)
- Test TC-26A - Injector #3 Control Circuit (DTC 27)
- Test TC-27A - Injector #4 Control Circuit (DTC 27)
- Test TC-28A - Injector #5 Control Circuit (DTC 27)
- Test TC-29A - Injector #6 Control Circuit (DTC 27)
- Test TC-30A - Injector #7 Control Circuit (DTC 27)
- Test TC-31A - Injector #8 Control Circuit (DTC 27)
- Test TC-32A - EGR System Failure (DTC 32)
- Test TC-33A - EGR Solenoid Circuit (DTC 32)
- Test TC-34A - EVAP Solenoid Circuit (DTC 31)
- Test TC-35A - Torque Converter Clutch Solenoid Circuit (DTC 37)
- Test TC-35B - Torque Converter Clutch Solenoid Circuit
- Test TC-36A - Trans Overdrive Solenoid Circuit (DTC 45)
- Test TC-37A - A/C Clutch Relay Circuit (DTC 33)
- Test TC-38A - Auto Shutdown Relay Control Circuit (DTC 42)
- Test TC-39A - No ASD Relay Output Voltage At Pcm (DTC 42)
- Test TC-40A - Trans Temp Sensor Voltage Too Low (DTC 37)
- Test TC-41A - Transmission Temperature Sensor Voltage High (DTC 37)
- Test TC-42A - Pcm Failure Sri Mile Not Stored Or Pcm Failure EEPROM Write Denied (DTC 62 Or 63)
- Test NTC-1A - No Trouble Code Test Menu
- Test NTC-2A - Checking Secondary Ignition & Timing
- Test NTC-3A - Checking Fuel Pressure
- Test NTC-3B - Checking Fuel Pressure
- Test NTC-4A - Checking Coolant Sensor Calibration
- Test NTC-5A - Checking TP Sensor Calibration
- Test NTC-6A - Checking Map Sensor Calibration
- Test NTC-7A - Checking O2S Switching
- Test NTC-7B - Checking O2S Switching
- Test NTC-8B - Checking O2S Heater
- Test NTC-9A - Checking Idle Air Control Motor
- Test NTC-9B - Checking Idle Air Control Motor
- Test NTC-10A - Checking Solenoid Operation
- Test NTC-11A - Checking Park/Neutral Switch
- Test NTC-12A - Checking Pcm Grounds & Power Circuits
- Test NTC-13A - Checking EGR System
- Test NTC-14A - Checking Engine Vacuum
- Test NTC-15A - Checking Minimum Idle Air Flow
- Test NTC-16A - No Trouble Code Mechanical Test
- No-Start Tests
- Test NS-1A - Qualifying No-Start Condition
- Test NS-2A - Inspecting Fuel System
- Test NS-3A - Inspecting Mechanical System
- Test NS-4A - Correcting Fuel Delivery
- Test NS-5A - Inspecting Fuel Pump
- Test NS-5B - Inspecting Fuel Pump
- Test NS-6A - Correcting No Response Condition
- Test NS-6B - Correcting No Response Condition
- Test NS-6C - Correcting No Response Condition
- Test NS-7A - Inspecting Idle Air Control Motor Operation
- Test NS-7B - Inspecting Idle Air Control Motor Operation
- Test NS-7C - Inspecting Idle Air Control Motor Operation
- Test NS-7D - Inspecting Idle Air Control Motor Operation
- Test NS-7E - Inspecting Idle Air Control Motor Operation
- Test NS-8A - Correcting Start & Stall Condition
- Test NS-9A - Repairing No Crank Condition
- Test NS-9B - Repairing No Crank Condition
- Test NS-9C - Repairing No Crank Condition
- Verification Tests
- Summary
- Wiring Diagrams
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.