A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- Manufacturer Code Charts
- Code to Test Chart
- 4 Digit Codes
- 1000 Ignition Line Low
- 1001 Ignition Line High
- 1002 Checking Vehicle Configuration
- 1004 Battery Voltage High
- 1005 Sensor Ground Line Out of Limits
- 1010 Diagnostic Enable Line Low
- 1011 Diagnostic Enable Line High
- 1012 MPA Line Low
- 1013 MPA Line High
- 1014 Fuel Pump Line Low
- 1015 Fuel Pump Line High
- 1016 Manifold Air Temperature Sensor Line Low
- 1017 Charge Air Temperature Sensor Line Low
- 1021 Engine Fails to Start-Mechanical, Fuel or Ign.
- 1022 Start Line Low
- 1024 ECU Does Not See Start Signal
- 1027 ECU Sees Wide Open Throttle
- 1028 ECU Does Not See Wide Open Throttle
- 1031 ECU Sees Closed Throttle
- 1032 ECU Does Not See Closed Throttle
- 1033 Idle Speed Increase Line Low
- 1034 Idle Speed Increase Line High
- 1035 Idle Speed Decrease Line Low
- 1036 Idle Speed Decrease Line High
- 1037 Throttle Position Sensor Reads Low
- 1038 Park/Neutral Line High
- 1040 Latched B+ Line Low
- 1041 Latched B+ Line High
- 1042 No Latched B+ 1/2 Volt Drop
- 1048 Manual Vehicle Equipped With Automatic ECU
- 1049 Automatic Vehicle Equipped With Manual ECU
- 1050 Idle RPM Less Than 500
- 1051 Idle RPM Greater Than 2000
- 1052 MAP Sensor Out of Limits
- 1053 Change In MAP Sensor Reading Out of Limits
- 1054 Coolant Temperature Sensor Line Low
- 1055 Coolant Temperature Sensor Line High
- 1056 Inactive Coolant Temperature Sensor
- 1057 Knock Sensor Shorted
- 1058 Knock Sensor Value Out of Limits
- 1059 A/C Request Line Low
- 1060 A/C Request Line High
- 1061 A/C Select Line Low
- 1062 A/C Select Line High
- 1063 A/C Clutch Line Low
- 1064 A/C Clutch Line High
- 1065 Oxygen Sensor Reads Rich
- 1066 Oxygen Sensor Reads Lean
- 1067 Latch Relay Line Low
- 1068 Latch Relay Line High
- 1069 No Tach
- 1070 A/C Cutout Line Low
- 1071 A/C Cutout Line High
- 1073 ECU Does Not See Speed Sensor Signal
- 1200 ECU Defective
- 1202 All Injectors Shorted to Ground
- 1209 All Injectors Open
- 1218 No Voltage at ECU From Power Latch Relay
- 1220 No Voltage at ECU From EGR Solenoid
- 1221 No Injector Voltage
- 1222 MPA Not Grounded
- 1223 No ECU Tests Run
- Driveability (DR) Tests
- DR-1A CODE to DR TEST Chart (Checking for Fault Codes)
- DR-2A Repairing "Slow Change In Idle MAP Signal" Fault
- DR-3A Repairing "No MAP Change From Start to Run" Fault
- DR-4A Repairing "MAP Voltage Too Low" Fault
- DR-5A Repairing MAP "Sensor Voltage Too High" Fault
- DR-6A "No Vehicle Speed Signal"
- DR-7A Repairing "O2 Sensor Signal Stays at Center" Fault
- DR-8A Repairing "O2 Sensor Signal Above 12 Volts" Fault
- DR-9A Repairing "Coolant Temp Sensor Voltage High" Fault
- DR-10A Repairing "Coolant Temp Sensor Voltage Low" Fault
- DR-11A Repairing "Charge Temp Sensor Voltage High" Fault
- DR-12A Repairing "Charge Temp Sensor Voltage Low" Fault
- DR-13A Repairing "Throttle POS. Sensor Voltage Hi" Fault
- DR-14A Repairing Throttle POS. Sensor Voltage Low" Fault
- DR-15A Repairing "AUT0 Idle Speed Motor Circuits" Fault
- DR-16A Repairing "Inj #1 Peak Current Not Reached" Fault
- DR-17A Repairing "Inj #1 Control CKT & Peak Current" Fault
- DR-18A Repairing "Inj #2 Peak Current Not Reached" Fault
- DR-19A Repairing "Inj #2 Control CKT & Peak Current" Fault
- DR-20A Repairing "Inj #3 Peak Current Not Reached" Fault
- DR-21A Repairing "Inj #3 Control CKT & Peak Current" Fault
- DR-22A Repairing "EGR Solenoid Circuit" Fault
- DR-23A Repairing "A/C Clutch Relay Circuit" Fault
- DR-24A Repairing "Radiator Fan Relay Circuit" Fault
- DR-25A Repairing "No ASD Relay Voltage at SBEC" Fault
- DR-26A Repairing "Ignition Coil #1 Primary Circuit" Fault
- DR-26B Repairing "Ignition Coil #1 Primary Circuit" Fault
- DR-27A Repairing "Ignition Coil #2 Primary Circuit" Fault
- DR-27B Repairing "Ignition Coil #2 Primary Circuit" Fault
- DR-28A Repairing "Ignition Coil #3 Primary Circuit" Fault
- DR-28B Repairing "Ignition Coil #3 Primary Circuit" Fault
- DR-29A Controller Failure EEPROM Write Denied
- DR-30A Checking Secondary Ignition & Timing
- DR-31A Checking Fuel Pressure
- DR-31B Checking Fuel Pressure
- DR-32A Checking Coolant Temperature & TPS Calibrations
- DR-33A Checking MAP Sensor Calibration
- DR-34A Checking Oxygen Sensor Switching
- DR-34B Checking Oxygen Sensor Switching (Locked Lean)
- DR-35A Checking Idle Motor Operation
- DR-35B Checking Idle Motor Operation
- DR-35C Checking Idle Motor Operation
- DR-35D Checking Idle Motor Operation
- DR-35E Checking Idle Motor Operation
- DR-36A Checking Park/Neutral Switch Input
- DR-37A Checking SBEC Grounds & Power Circuits
- DR-38A Checking EGR Operation
- DR-39A Checking Engine Vacuum
- DR-40A Checking Minimum Idle Air Flow
- DR-41A No Fault Code Mechanical Test
- DR-42A Intermittent Test For Relays & Solenoids
- DR-43A Intermittent Test For Voltage Sensors
- DR-43B Intermittent Test For Slow or No Change In MAP
- DR-44A Intermittent Test For AIS Motor Circuits
- DR-45A Intermittent Test For Fuel Injectors
- 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 Repairing Fault Alt Field Not Switching Properly
- 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 Repairing Fault "Speed Control Solenoid Circuits"
- SP-2B Repairing Fault "Speed Control Solenoid Circuits"
- SP-2C Repairing Fault "Speed Control Solenoid Circuits"
- SP-3A Repairing Fault Code "No Vehicle Speed Signal"
- SP-3B Repairing Fault Code "No Vehicle Speed Signal"
- SP-4A Checking Speed Control Switches
- SP-5A Checking On/Off Switch
- SP-5B Checking On/Off Switch
- SP-7A Checking Resume Switch
- SP-9A Checking Set Switch
- SP-11A Checking Brake Switch
- SP-11B Checking Brake Switch
- SP-12A Checking Neutral Safety Switch
- SP-13A Checking Speed Control Servo Operation
- SP-13B Checking Speed Control Servo Operation
- SP-14A Checking For Intermittent Faults
- SP-15A Reading Faults
- SP-16A Repairing Fault "Speed Control Power Relay Circuit"
- SP-17A Repairing Fault "No Vehicle Speed Signal"
- SP-18A Repairing Fault "Speed Control Solenoid Circuit"
- SP-18B Repairing Fault "Speed Control Solenoid Circuit"
- SP-18C Repairing Fault "Speed Control Solenoid Circuit"
- SP-19A Checking Switches
- SP-20A Checking Speed Control Switches
- SP-20B Checking Speed Control Switches
- SP-21A Checking Brake Switch
- SP-21B Checking Brake Switch
- SP-22A Checking Neutral Safety Switch
- Vehicle Communication Tests
- 1A General Failure Messages
- 2A Testing For RAM Failure
- 3A Testing For Cartridge Error Message
- 4A Testing for Keypad Failure
- 5A Testing for High Battery Message
- 6A Testing for Low Battery Message
- 7A Bus Failure Messages
- 106A Motorized Seat Belt Blank DRBII
- 107A Motorized Seat Belt No Response
- 107B Motorized Seat Belt No Response
- 108A Testing Diag Conn For Gnd/DRB For Proper Operation
- 109A Testing For No Response on the DRBII Message Screen
- 109B Testing For No Response on the DRBII Message Screen
- 110A Testing Bendix ABS System For Blank Message Screen
- 111A Testing Bendix ABS System For No Response Message
- Verification Tests