A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Code to Test Chart
- Driveability (DR) Tests
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-2A "Slow Change In Idle MAP Signal"
- DR-3A
- DR-4A
- DR-5A
- DR-6A
- DR-7A
- DR-8A
- DR-9A
- DR-10A
- DR-11A
- DR-12A
- DR-13A
- DR-14A
- DR-15A
- DR-16A
- DR-17A
- DR-18A
- DR-19A
- DR-20A
- DR-21A
- DR-22A
- DR-23A
- DR-24A
- DR-25A
- DR-25B
- DR-26A
- DR-27A
- DR-28A
- DR-29A
- DR-30A
- DR-31A
- DR-32A
- DR-33A
- DR-34A
- DR-34B
- DR-35A
- DR-36A
- DR-37A
- DR-38A
- Antilock Brakes / Traction Control Systems
- Test 1A - Reading Fault Messages
- Test 1B - Fault (Trouble) Code Messages
- Test 2A - CAB Fault Test
- Test 2A - Modulator Fault
- 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
- Test 24A - System Verification Test
- Test 25 - DRB II Error Message
- Charging System (CH) Tests
- CH-1A Testing Battery
- CH-1B Testing Battery
- CH-2A Repair Fault Alt Field Not Switching Properly
- CH-2B Repair Fault Alt Field Not Switching Properly
- CH-2C Repair Checking Field Control For Shorts
- CH-3A Repair Fault Charge System Voltage Too Low
- CH-4A Repair Fault Charge System Voltage Too High
- CH-4B Checking Engine Controller Regulating Circuit
- CH-5A Check For Intermittent Problems
- Seat Belt Systems
- 1A Passive Restraint Functional Test
- 2A Fault 403 Speed Sensor Not Seen
- 3A Fault 405 Driver's Door Switch Closed
- 4A Fault 406 Driver's Door Switch Open
- 5A Fault 407 Driver's Forward Station Seen
- 5B Fault 407 Diagnosing Relays and Wiring
- 5C Fault 407 Diagnosing Relays and Wiring
- 6A Fault 408 Driver's Forward Station Not Seen
- 7A Fault 409 Driver's Rear Station Seen
- 7B Fault 409 Diagnosing Relays and Wiring
- 7C Fault 409 Diagnosing Relays and Wiring
- 8A Fault 410 Driver's Rear Station Not Seen
- 9A Fault 411 Driver's Belt on Carriage Seen
- 10A Fault 412 Driver's Belt on Carriage Not Seen
- 11A Fault 413 Passenger Door Switch Closed
- 12A Fault 414 Passenger Door Switch Open
- 13A Fault 415 Passenger Forward Station Seen
- 13B Fault 415 Diagnosing Relays and Wiring
- 13C Fault 415 Diagnosing Relays and Wiring
- 14A Fault 416 Passenger Forward Station Not Seen
- 15A Fault 417 Passenger Rear Station Seen
- 15B Fault 417 Diagnosing Relays and Wiring
- 15C Fault 417 Diagnosing Relays and Wiring
- 16A Fault 418 Passenger Rear Station Not Seen
- Speed Control (SP) Tests
- SP-1A Reading Fault Codes
- SP-2A Servo Power/ Ground Open Circuit Test
- SP-2B Speed Control Vacuum Solenoid Control Test
- SP-2C Speed Control Vent Solenoid Circuit Test
- SP-3A "No Vehicle Speed Signal" Fault Test
- SP-3B "No Vehicle Speed Signal" Fault Test
- SP-3C "No Vehicle Speed Signal" Fault Test
- SP-4A Speed Control Switches Test
- SP-5A Speed Control Switches Test
- SP-5B Speed Control Switch Circuit Short Test
- SP-5C Switch Short to Ground Test
- SP-5D Switch Circuit Open Test
- SP-6A Speed Control Resume Switch Test
- SP-6B Speed Control Resume Switch Test
- SP-7A Speed Control Set Switch Circuit Test
- SP-7B Speed Control Set Switch Circuit Test
- SP-8A Speed Control Set Switch Circuit Test
- SP-9A Speed Control Switch Circuit Test
- SP-9B Clockspring Circuit Short Test
- SP-9C Testing Clockspring Circuit For Open
- SP-10A Speed Control Switch Circuit Short Test
- SP-11A Brake Switch Circuit Open Test
- SP-11B Brake Switch Circuit Short Test
- SP-12A Speed Control Servo Operation Test
- SP-12B Vacuum to Servo Test
- SP-13A Park/Neutral Safety Switch Test
- SP-14A Checking For Intermittent Faults
- SP-15A Reading Faults
- SP-16A Speed Control Power Relay Fault Test
- SP-17A Speed Control Solenoid Fault Test
- SP-17B Speed Control Vacuum Solenoid Test
- SP-17C Speed Control Vent Solenoid Test
- SP-18A No Vehicle Speed Signal Fault Test
- SP-19A Speed Control Switches Test
- SP-20A Speed Control Switch Output Test
- SP-21A Brake Switch Circuit Open Test
- SP-21B Brake Switch Circuit Short Test
- SP-22A Park/Neutral Safety Switch Test
- Verification Tests