A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Diagnostic Notes (Read Before Proceding)
- Code to Test Chart
- Driveability (DR) Tests
- Diagnostic Notes (Read Before Proceding)
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-2 Checking Output Circuits of SMEC
- DR-3 Intermittent Test For Solenoids & Relays
- DR-4 Intermittent Test For MAP Sensor Signal
- DR-5 Intermittent Test For Sensor Voltages
- DR-6 Intermittent Test For Injectors & AIS Motor
- DR-7 Fault Message MAP Pneumatic Signal
- DR-8 Fault Message MAP Pneumatic Change
- DR-9 Fault Message MAP Voltage Low
- DR-10 Fault Message MAP Voltage Too High
- DR-11 Fault Message Vehicle Speed Signal
- DR-12 Fault Message Oxygen Sensor Signal
- DR-13 Fault Message Coolant Voltage Low
- DR-14 Fault Message Coolant Voltage High
- DR-15 Fault Message T/B Temp Voltage Low
- DR-16 Fault Message T/B Temp Voltage High
- DR-17 Fault Message TPS Voltage Low
- DR-18 Fault Message TPS Voltage High
- DR-19 Fault Message AIS Motor Circuit
- DR-20 Fault Message Purge Solenoid CKT
- DR-21 Fault Message EGR Solenoid Circuit
- DR-22 Fault Message EGR System Failure
- DR-23 Fault Message A/C Clutch Relay CKT
- DR-24 Checking Radiator & A/C Fan Relays
- DR-25 Fault Message Radiator Fan Relay
- DR-26 Fault Message PTU Solenoid Circuit
- DR-27 Fault Message Fused J2 Voltage Sense
- DR-28 Fault Messages EMR Mileage ACCUM & EEPROM
- DR-29 Checking Sensor Calibration
- DR-30 Checking Sensor Calibrations
- DR-31 Checking EGR Valve Operation (Warm)
- DR-32 Checking Secondary Ignition System
- DR-33 Checking Basic Timing & Fuel System
- DR-34 Checking Oxygen Sensor Operation
- DR-35 Throttle Body Minimum Air Flow
- DR-36 Driveability Problems Not Related to Engine Controls
- DR-37 Driveability Verification I
- DR-38 Driveability Verification II
- Antilock Brakes / Traction Control Systems
- Test 1B - Fault (Trouble) Code Messages
- Test 2A - CAB Fault Test
- Test 3 - Modulator Fault
- Test 4 - Solenoid Undervoltage
- Test 5 - Low Fluid/Parking Brake Fault
- Test 6 - System Relay Fault
- Test 7 - Low Accumulator Fault
- Test 8 - Boost Pressure Fault
- Test 9 - Right Rear Wheel Speed Sensor Continuity Fault
- Test 10 - Left Rear Wheel Speed Sensor Continuity Fault
- Test 11 - Right Front Wheel Speed Sensor Continuity Fault
- Test 12A - Left Front Wheel Speed Sensor
- Test 13A - Right Rear Wheel Speed Sensor
- Test 14A - Left Rear Wheel Speed Sensor
- Test 15A - Right Front Wheel Speed Sensor
- Test 16A - Left Front Wheel Speed Sensor Fault
- Test 17 - Primary Pressure/Delta Pressure Fault
- Test 18 - Antilock Lamp Fault
- Test 19 - Antilock Lamp Relay Fault
- Test 20A - Excess Decay Fault
- Test 21 - Hydraulic Pump/Motor Circuit Test
- Test 22 - Hydraulic Pressure Performance Test
- Test 23A - Stop Lamp Switch Input Test
- Charging System (CH) Tests
- CH-1A Checking Charging System For Fault Codes
- CH-2 Fault Code 16
- CH-2 Fault Code 16-Battery Voltage Sense Problem
- CH-3A Fault Code 46
- CH-3A Fault Code 46-Battery Voltage Too High
- CH-3B Fault Code 46-Battery Voltage Too High
- CH-4A Fault Code 47
- CH-4A Fault Code 47-Battery Voltage Too Low
- CH-4B Fault Code 47-Battery Voltage Too Low
- CH-5 Checking For Intermittent Fault Codes
- CH-6 Checking Charging System With No Codes
- Cruise Control
- Speed Control (SC) Tests
- Diagnostic Guidelines
- SC-1 Checking Speed Control System For Fault Codes
- SC-2A Fault Code 34-Speed Control Servo (Vacuum)
- SC-2B Fault Code 34 Speed Control Vent Solenoid
- SC-3 Testing Speed Control Switch
- SC-4A-Brake Switch Circuit
- SC-4B Park/Neutral Input
- SC-4C Testing the Servo Ground
- SC-4D Servo Actuator Test
- SC-5 Check On/Off Switch & Stalk Feed
- SC-6 Testing the Resume Switch Circuit
- SC-7 Testing the Set Switch
- Speed Control (SP) Tests
- SP-1 Checking System For Fault Codes
- SP-2A Fault Code 34
- SP-2B Fault Code 34
- SP-3 Testing Speed Control Switch
- SP-4A Brake Switch Circuit
- SP-4B Park/Neutral Input
- SP-4C Checking the Servo Ground
- SP-4D The Servo Actuator
- SP-5 Check on/Off Switch & Stalk Feed
- SP-6 Testing the Resume Switch
- SP-7 Testing the Set Switch
- Verification Tests