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-2 "MAP Pneumatic Signal"
- DR-3 "MAP Pneumatic Change"
- DR-4 "MAP Voltage Too Low"
- DR-5 "MAP Voltage Too High"
- DR-6 "Vehicle Speed Signal"
- DR-7 "Oxygen Sensor Signal"
- DR-8 "Oxygen Sensor Shorted High"
- DR-9 "Coolant Voltage Low"
- DR-10 "Coolant Voltage High"
- DR-11 "Throttle Body Temp. Sensor Voltage Low"
- DR-12 "Throttle Body Temp. Sensor Voltage High"
- DR-13 "TPS Voltage Low"
- DR-14 "TPS Voltage High"
- DR-15 "AIS Motor Circuits"
- DR-16 "Injector #1 Control Circuit"
- DR-17 "Purge Solenoid Circuit"
- DR-18 "EGR Solenoid Circuit"
- DR-19 "EGR System Failure"
- DR-20 "A/C Clutch Relay Circuit"
- DR-21 "Idle Switch Shorted"
- DR-22 "Idle Switch Open"
- DR-23 "Air Switch Solenoid"
- DR-24 "PTU Solenoid Circuit"
- DR-25 "PTU Solenoid Circuit" With Overdrive
- DR-26 "Overdrive Solenoid"
- DR-27 "Z1 Voltage Sense"
- DR-28 "EMR Miles Not Stored" or "EEPROM Write Denied"
- DR-29 Engine Controller Power and Ground
- DR-30 Park/Neutral Switch Input
- DR-31 Coolant and TPS Sensor Calibrations
- DR-32 MAP and Throttle Body Sensor Calibrations
- DR-33 Closed Throttle Switch
- DR-34 Checking Idle Speed Actuator Operation
- DR-35 Checking Solenoids
- DR-36 Checking EGR Valve Operation
- DR-37 Checking the Air Switching System
- DR-38 Checking Secondary Ignition & Ignition Timing
- DR-39 Checking Fuel Pressure
- DR-40 Checking Heated Air Door and For Fuel In Crankcase
- DR-41 Checking O2 Sensor Function and O2 Sensor Heater
- DR-42 Checking Minimum and Maximum Air Flow
- DR-43 Possible Causes of Driveability Related Problems
- DR-44 Intermittent Test For Solenoids and Relays
- DR-45 Intermittent Test For MAP Change
- DR-46 Intermittent For Voltage Sensors
- DR-47 Intermittent For Idle Motor
- DR-48 Intermittent For Injectors
- Antilock Brakes / Traction Control Systems
- Test 1 - Module And Diagnostic Connector Inspection
- Test 2 - System Self Check
- Test 3 - Sensor Output and Physical Condition
- Test 4 - Checking Sensor Gap
- Test 5 - Brake Mechanical Problems
- Test 6 - Diagnostic Connector Ground
- Test 7 - Module Ground and Power
- Test 8 - Parking System and Module
- Test 9 - Intermittent Problems
- Test 10 - Open or Disconnected Park Brake Switch Connector
- Test 11 - Flashcodes
- Test 12 - One Flash
- Test 13 - Two Flashes
- Test 14 - Three Flashes
- Test 15 - Four Flashes
- Test 16 - Five Flashes
- Test 17 - Six Flashes
- Test 18 - Seven Flashes
- Test 19 - Eight Flashes
- Test 20 - Nine Flashes
- Test 21 - Ten Flashes
- Test 22 - Eleven Flashes
- Test 23 - Twelve Flashes
- Test 24 - Thirteen Flashes
- Test 25 - Fourteen Flashes
- Test 26 - Fifteen Flashes
- Test 27 - Sixteen or More Flashes
- Charging System (CH) Tests
- Cruise Control
- Speed Control (SP) Tests
- SP-1 Checking DRBII Operation and Reading Faults
- SP-2 Repairing Fault "S/C Servo Solenoids"
- SP-3 Repairing Fault "Vehicle Speed Sensor"
- SP-4 Checking Switch Input
- SP-5 Testing On/Off Switch
- SP-6 Testing On/Off Switch For Minvan,Truck or Q-Body
- SP-7 Testing Resume Switch
- SP-8 Testing Resume Switch For Mini-Van,Truck or "Q" Body
- SP-9 Testing Set Switch
- SP-10 Testing Set Switch For Minivan,Truck or Q-Body
- SP-11 Testing Brake Switch Input
- SP-12 Testing Park/Neutral Switch Input
- SP-13 Checking Servo Power & Ground Circuits
- SP-13 Servo Actuator Test
- SP-14 Speed Control Performance Check
- Verification Tests