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Service Manual Trucks Group 36 Vehicle Electronic Control Unit (MID 144) Diagnostic Trouble Code (DTC), Guide From build date 1.
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Foreword The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to January 2010. The products are under continuous development. Vehicles and components produced after the above date may therefore have different specifications and repair methods. When this is believed to have a significant bearing on this manual, supplementary service bulletins will be issued to cover the changes. The new edition of this manual will update the changes.
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Contents Design and Function.................................................................................................................... 3 MID 144 Vehicle Control Unit ....................................................................................................... 3 Troubleshooting .......................................................................................................................... 4 Vehicle Control Unit, Fault Tracing .....................................................
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Group 36 MID 144 Vehicle Control Unit Design and Function MID 144 Vehicle Control Unit The manufacturer diagnostic tool is the preferred tool for performing diagnostic work. Contact your local dealer for more information or visit “www.premiumtechtool.com”.
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Vehicle Control Unit, Fault Tracing Group 36 Troubleshooting Vehicle Control Unit, Fault Tracing The manufacturer diagnostic tool is the preferred tool for performing diagnostic work. Contact your local dealer for more information or visit “www.premiumtechtool.com”. The control modules on the SAE J1587 data link communicate according to the SAE J1587 standard. The standard has been extended with Volvo’s own supplement (PPID, PSID).
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Group 36 Vehicle Control Unit, Fault Tracing MID 144 Vehicle ECU, Fault Codes PID “MID 144 PID 46 Primary Tank Pressure”, page 7 “MID 144 PID 83 Road Speed Limit Status”, page 7 “MID 144 PID 84 Vehicle Speed”, page 7 “MID 144 PID 86 Cruise Control, Set Speed”, page 8 “MID 144 PID 91 Accelerator Pedal Position (Percentage)”, page 8 “MID 144 PID 152 Vehicle ECU, Number of Resets”, page 8 “MID 144 PID 191 Output Shaft Speed”, page 9 PPID “MID 144 PPID 3 Starter relay Output”, page 9 “MID 144 PPID 60 Idle Sw
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Group 36 Vehicle Control Unit, Fault Tracing PSID “MID 144 PSID 1 Retarder Control Set Switch”, page 14 “MID 144 PSID 2 Idle Validation Switch 2”, page 14 “MID 144 PSID 4 Engine Brake Stalk Lever”, page 15 “MID 144 PSID 8 Neutral Position Error”, page 15 “MID 144 PSID 16 Power Relay 1”, page 15 “MID 144 PSID 20 Power Take-off Signal”, page 15 “MID 144 PSID 23 Air Dryer, Regenerating”, page 16 “MID 144 PSID 24 Compressor, Control”, page 16 “MID 144 PSID 25 Air Leakage”, page 16 “MID 144 PSID 200 Communicat
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PID 46 Primary Tank Pressure Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 1 • Data valid, but below the normal working range • • Yellow Check lamp lit Air leakage • ECS out of level icon lit • • • Abnormally high voltage or short circuit to higher voltage • • Yellow Check lamp lit • • • Signal shorted to high Abnormally low voltage or short circuit to lower voltage • • • • Signal shorted
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PID 86 Cruise Control, Set Speed Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 14 • • • • • Special Instructions Timeout on ACC1 message with adamptive cruise installed N/A Faulty or no info from ACC (VORAD) Wiring harness MID 144 PID 91 Accelerator Pedal Position (Percentage) Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • Abnormally high voltage
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PID 191 Output Shaft Speed Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 5 • Abnormally low current or open circuit • Lower current then expected • • • Faulty vehicle speed sensor (VSS) Abnormally high current or short circuit to ground • Higher current then expected • • • Faulty vehicle speed sensor (VSS) FMI 6 • N/A N/A Wiring harness Wiring harness MID 144 PPID 3 Starter relay Output
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PPID 69 Buffered Idle Validation Switch Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • Abnormally high voltage or short circuit to higher voltage • Buffered IVS1 too high compared to IVS1 signal • Yellow Check lamp lit • • Signal shorted high Abnormally low voltage or short circuit to lower voltage • Buffered IVS1 too low compared to IVS1 signal • Yellow Check lamp lit • • Signal shorted l
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PPID 72 Accelerator Pedal and Engine Brake, Sensors Supply Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • • • Yellow Check lamp lit • Accelerator pedal position sensor harness shorted high • Requested fuel not supplied to engine • Accelerator pedal position sensor • Engine brake retarder is disabled • Yellow Check lamp lit • Accelerator pedal position sensor harness shorted low • Reques
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PPID 74 Vehicle ECU, Power Supply Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 4 • • • Yellow Check lamp lit • Engine will not supply requested fuel to engine • • • • Display show minimum wet tank pressure Abnormally low voltage or short circuit to lower voltage Voltage below 4.
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PPID 430 Air Dryer, Regeneration Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 0 • • • Yellow Check lamp lit • Reduced air pump ability • • • Data valid, but above the normal working range Airflow used is too high to get time to regenerate Air suspension regulates too much Air leak Air Filter MID 144 SID 230 Idle Validation Switch 1 Type of fault: FMI Description: Fault Condition: Possible Sym
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 SID 250 SAE J1587 Data Link Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • • • • Intermittent or incorrect data Faulty messages on the link received Some function disturbances may occur SAE J1587 data link down/shorted MID 144 SID 253 Calibration Memory EEPROM Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • • Datasets have incorrect checksum •
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PSID 4 Engine Brake Stalk Lever Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • Abnormally high voltage or short circuit to higher voltage • • Yellow Check lamp lit Faulty harness • • • Retarder deactivated Abnormally low voltage or short circuit to lower voltage • • Yellow Check lamp lit Faulty harness • • • Retarder deactivated FMI 4 • Voltage above 4.8V Voltage below 0.
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PSID 23 Air Dryer, Regenerating Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 3 • Abnormally high voltage or short circuit to higher voltage • • Yellow Check lamp lit • • Signal shorted low Abnormally low voltage or short circuit to lower voltage • Yellow Check lamp lit • • Signal shorted high FMI 4 • Voltage too high Voltage below 2.
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PSID 202 Communication Interference, Data Link, Instrumentation Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 9 • • • • • Abnormal update rate Expected Cluster message/s not received Yellow Check lamp lit CAN1 Communication Down SAE J1939 datalink Down/Shorted MID 144 PSID 204 Communication Interference, Data Link, Brake Control Module Type of fault: FMI Description: Fault Condition: Possible Sy
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Vehicle Control Unit, Fault Tracing Group 36 MID 144 PSID 208 Communication Interference, Data Link, Air Suspension Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 9 • • • • • Abnormal update rate Expected ECS message/s not received Yellow Check lamp lit CAN1 Communication Down SAE J1939 data link Down/Shorted MID 144 PSID 210 SAE J1939 Data Link Interruption, Lighting Control Module (LCM) Type of fault: FMI Description: Fault Condition: Possible Sy
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Last page Volvo Trucks North America P.O. Box 26115, Greensboro, NC 27402-6115 Volvo Trucks Canada, Ltd. 5600A Cancross Court, Missisauga, Ontario L5R 3E9 http://www.volvotrucks.com PV776-88948891 (USA) 1.2010 © Volvo Group North America, Inc.
