LGQE3Su0/UF4CReJj2NI/AAAAAAAAA9Q/0mDpMgS_guY/w1200-h630-p-k-nu/3000-watt-power-inverter-circuit-diagram.png' alt='Volvo Serial Communication Link Malfunction' title='Volvo Serial Communication Link Malfunction' />Ive noticed that there are a lot of members here asking about the meanings of codes they get during diagnostics and unfortunately not a lot of members have the answer. So, as a member of this great forum, Id like to contribute the list I have from a manual that I own. I hope this helps CARBURETED ENGINESCODE 1. No distributor reference pulses to the ECM. This code is not stored in memory and will only flash while the trouble exists. The SAE J1939 Communications Network An overview of the J1939 family of standards and how they are used Since its publication more than a decade ago, SAE J1939 has. Highway Design, Traffic Engineering, and Accident Reconstruction Expert. Roadway Design, Maintenance, and Traffic Control Defects. Railroad Crossing Safety. Get the latest breaking news across the U. S. on ABCNews. com. EopKYsIlSoo/VQfRfReCigI/AAAAAAAAAqo/A2WDi1OfOnk/s1600/corrupted.jpg' alt='Volvo Serial Communication Link Malfunction Mercedes' title='Volvo Serial Communication Link Malfunction Mercedes' />This code is normal when the ignition is switched ON with the engine not running. CODE 1. 3 Oxygen sensor circuit. Mercruiser MEFI3 ECM Delphi 16237009 This topic is under development and really only scratching the tip of the iceberg. Ill be organizing this and helping you find. HTB1Qh9iLXXXXXa2XFXXq6xXFXXXl/2017-Newest-Version-2014D-Professional-Universal-Diagnostic-Tool-vida-dice-with-Free-Shipping.jpg' alt='Volvo Serial Communication Link Malfunction' title='Volvo Serial Communication Link Malfunction' />The engine must operate for up to 5 minutes at part throttle, under road load, before the code will be set. CODE 1. 4 Shorted coolant sensor circuit. The engine must operate for up to 5 minutes before this code will be set. CODE 1. 5 Open coolant sensor circuit. The engine must operate for up to 5 minutes before this code will be set. CODE 2. 1 Throttle position sensor circuit. The engine must operate for at least 2. CODE 2. 3 Mixture control solenoid circuit is shorted or open. CODE 3. 4 Vacuum sensor circuit. The engine must operate for up to 5 minutes at curb idle speed before this code will be set. CODE 4. 1 No distributor reference pulses to the ECM at the specified engine manifold vacuum. This code will be stored in memory. CODE 4. 2 Electronic Spark Timing EST bypass circuit or EST circuit has short circuit to ground or an open circuit. CODE 4. 4 Lean exhaust indication. The engine must operate for up to 5 minutes, be in closed loop operation and at part throttle before this code will be set. CODE 4. 4 4. If these two codes appear at the same time, it indicates a problem in the oxygen sensor circuit. CODE 4. 5 Rich exhaust indication. The engine must operate for up to 5 minutes, be in a closed loop and at part throttle before this code will be set. CODE 5. 1 Faulty calibration unit PROM or installation. It requires up to 3. CODE 5. 4 Mixture Control MC solenoid circuit is shorted or the ECM is faulty. CODE 5. 5 Voltage reference has short circuit to ground terminal 2. ECM. FUEL INJECTED ENGINESExcept 1. Later Models. Code 1. Ignition line low. Code 1. 00. 1 Ignition line high. Code 1. 00. 2 Oxygen heater line. Code 1. 00. 4 Battery voltage low. Code 1. 00. 5 Sensor ground line out of limits. Code 1. 01. 0 Diagnostic enable line low. Code 1. 01. 1 Diagnostic enable line high. Code 1. 01. 2 MAP line low. Code 1. 01. 3 MAP line high. Code 1. 01. 4 Fuel pump line low. Code 1. 01. 5 Fuel pump line high. Code 1. 01. 6 Charge air temperature sensor low. Code 1. 01. 7 Charge air temperature sensor high. Code 1. 01. 8 No serial data from the ECU. Code 1. 02. 1 Engine failed to start due to mechanical, fuel, or ignition problem. Code 1. 02. 2 Start line low. Code 1. 02. 4 ECU does not see start signal. Code 1. 02. 5 Wide open throttle circuit low. Code 1. 02. 7 ECU sees wide open throttle. Code 1. 02. 8 ECU does not see wide open throttle. Code 1. 03. 1 ECU sees closed throttle. Code 1. 03. 2 ECU does not see closed throttle. Code 1. 03. 3 Idle speed increase line low. Code 1. 03. 4 Idle speed increase line high. Code 1. 03. 5 Idle speed decrease line low. Code 1. 03. 6 Idle speed decrease line high. Code 1. 03. 7 Throttle position sensor reads low. Code 1. 03. 8 ParkNeutral line high. Code 1. 04. 0 Latched B line low. Code 1. 04. 1 Latched B line high. Code 1. 04. 2 No Latched B 12 volt drop. Code 1. 04. 7 Wrong ECU. Code 1. 04. 8 Manual vehicle equipped with automatic ECU. Code 1. 04. 9 Automatic vehicle equipped with manual ECU. Code 1. 05. 0 Idle RPMs less than 5. Code 1. 05. 1 Idle RPMs greater than 2. Code 1. 05. 2 MAP sensor out of limits. Code 1. 05. 3 Change in MAP reading out of limits. Code 1. 05. 4 Coolant temperature sensor line low. Code 1. 05. 5 Coolant temperature sensor line high. Code 1. 05. 6 Inactive coolant temperature sensor. Code 1. 05. 7 Knock circuit shorted. Code 1. 05. 8 Knock value out of limits. Code 1. 05. 9 AC request line low. Code 1. 06. 0 AC request line high. Code 1. 06. 1 AC select line low. Code 1. 06. 2 AC select line high. Code 1. 06. 3 AC clutch line low. Code 1. 06. 4 AC clutch line high. Code 1. 06. 5 Oxygen reads rich. Code 1. 06. 6 Oxygen reads lean. Code 1. 06. 7 Latch relay line low. Code 1. 06. 8 Latch relay line high. Code 1. 07. 0 AC cutout line low. Code 1. 07. 1 AC cutout line high. Code 1. 07. 3 ECU does not see speed sensor signal. Code 1. 20. 0 ECU defective. Code 1. 20. 2 Injector shorted to ground. Code 1. 20. 9 Injector open. Restore Iphone 4 6.0.1 more. Code 1. 21. 8 No voltage at ECU from power latch relay. Code 1. 22. 0 No voltage at ECU from EGR solenoid. Code 1. 22. 1 No injector voltage. Code 1. 22. 2 MAP not grounded. Code 1. 22. 3 No ECU tests run. Models. Code 8. 8 Display used for start of test. Code 1. 1 Camshaft signal or Ignition signal no reference signal detected during engine cranking. Code 1. 2 Memory to controller has been cleared within 5. Code 1. 3 MAP sensor pneumatic signal no variation in MAP sensor signal is detected or no difference is recognized between the engine MAP reading and the stored barometric pressure reading. Code 1. 4 MAP voltage too high or too low. Code 1. 5 Vehicle speed sensor signal no distance sensor signal detected during road load condition. Code 1. 6 Knock sensor circuit Open or short has been detected in the knock sensor circuit. Code 1. 6 Battery input sensor battery voltage sensor input below 4 volts with engine running. Code 1. 7 Low engine temperature engine coolant temperature remains below normal operating temperature during vehicle travel possible thermostat problem. Code 2. 1 Oxygen sensor signal neither rich or lean condition is detected from the oxygen sensor input. Code 2. 2 Coolant voltage low coolant temperature sensor input below the minimum acceptable voltageCoolant voltage high coolant temperature sensor input above the maximum acceptable voltage. Code 2. 3 Air Charge or Throttle Body temperature voltage HIGHLOW charge air temperature sensor input is above or below the acceptable voltage limits. Code 2. 4 Throttle Position sensor voltage high or low. Code 2. 5 Automatic Idle Speed AIS motor driver circuit short or open detected in 1 or more of the AIS control circuits. Code 2. 6 Injectors No. Code 2. 7 Injector control circuit bank output driver stage does not respond properly to the control signal. Code 2. 7 Injectors No. Code 3. 1 Purge solenoid circuit open or short detected in the purge solenoid circuit. Code 3. 2 Exhaust Gas Recirculation ERG solenoid circuit open or short detected in the EGR solenoid circuitEGR system failure required changed in fuelair ratio not detected during diagnostic test. Code 3. 3 Air conditioner clutch relay circuit open or short detected in the air conditioner clutch relay circuit. If vehicle doesnt have air conditioning ignore this code. Code 3. 4 Speed control servo solenoids or MUX speed control circuit HIGHLOW open or short detected in the vacuum or vent solenoid circuits or speed control switch input above or below allowable voltage. Code 3. 5 Radiator fan control relay circuit open or short detected in teh radiator fan relay circuit. Code 3. 5 Idle switch shorted switch input shorted to ground some 1. Code 3. 7 Part Throttle Unlock PTU circuit for torque converter clutch open or short detected in the torque converter part throttle unlock solenoid circuit. Code 3. 7 Baro Reed Solenoid solenoid does not turn off when it should. Financial, legislative, agricultural, and all the other most important news about the cannabis industry.