Trailer Module (Trm) Diagnostic Trouble Codes: Diagnosis Volvo V50 I рестайлинг

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-1A03

Condition

Scheme 5

The trailer module (TRM) checks internal functions in the control module.

The diagnostic trouble code (DTC) is stored if the control module registers an internal fault.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Incorrect programming of the trailer module (TRM)
2. Fault in the trailer module (TRM).

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

Scheme 6

Scheme 7

1. Disconnect any connection from the socket for the tow hitch connector
2. Ignition off, wait for at least 1 minute
3. Break the power supply to the trailer module (TRM) by disconnecting the battery negative lead. Wait 10 seconds
4. Connect the battery negative lead. CAUTION: Do not touch the terminal pins in the trailer module (TRM). There is a risk of static discharge which could damage the control module. Download new software and reprogram the trailer module (TRM). If the fault remains after reprogramming, replace the trailer module (TRM). Other information see «SIGNAL SPECIFICATION»(ref-466643-S26754525212012042500000) For further information about cable routing and terminals, see the wiring diagram see «BATTERY DISCONNECTING AND CONNECTING»(ref-466644-S02084484912012042500000) see «TRAILER MODULE (TRM)»(ref-466926-S31713013162012042500000)

1. Continue Refer to «VERIFICATION»(ref-466773-S08203631062012042500000)

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-1A04

Condition

The trailer module (TRM) checks internal functions in the control module.

The diagnostic trouble code (DTC) is stored if the control module registers an internal fault.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Fault in the trailer module (TRM).

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8B01

Condition

Scheme 8

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

Scheme 9

1. Disconnect any connection from the socket for the tow hitch connector
2. Ignition off, wait for at least 1 minute
3. Break the power supply to the trailer module (TRM) by disconnecting the battery negative lead
4. Disconnect connector A from the trailer module (TRM). CAUTION: Do not touch the terminal pins in the trailer module (TRM). There is a risk of static discharge which could damage the control module. Check the connectors to the trailer module (TRM) and to the socket for the tow hitch connector. Check for damage to pins and terminals in the connectors. Remedy as necessary. Check the cable between the trailer module (TRM) and the socket for the tow hitch connector. Check for a short-circuit to ground. Check the cable between trailer module (TRM) terminal #A12 and the socket for the tow hitch connector. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466642-S05349890302012042500000) see «SIGNAL SPECIFICATION»(ref-466643-S26754525212012042500000) see «BATTERY DISCONNECTING AND CONNECTING»(ref-466644-S02084484912012042500000) see «TRAILER MODULE (TRM)»(ref-466926-S31713013162012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)

1. Continue Refer to «VERIFICATION»(ref-466773-S20846678682012042500000)

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8B02

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8C01

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8C02

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8D01

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8D02

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8D03

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8D04

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8D05

Condition

The trailer module (TRM) checks the signal in the cable from the vehicle right-hand stop lamp. The trailer module (TRM) also checks messages on the CAN network from the central electronic module (CEM) regarding braking the vehicle.

If the control module registers too great a time difference between the signal from the vehicle right-hand stop lamp and the message on the CAN network, this is registered in the control module. The diagnostic trouble code (DTC) is stored if this is repeated a number of times.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Too great a time difference between the signal from the vehicle right-hand stop lamp and the message on the CAN network regarding braking the vehicle.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8E01

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8E02

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8F01

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8F02

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8F03

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too low.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-8F04

Condition

The trailer module (TRM) checks the signal in the cable to the socket for the tow hitch connector. The signal is only checked when no tow hitch connector is connected to the socket.

The diagnostic trouble code (DTC) is stored if the control module registers that the signal in the signal cable is too high.

The diagnostic trouble code (DTC) can be diagnosed in ignition positions 0, I, II and III.

Substitute Value

1. None.

Possible Source

1. Short-circuit to power supply in the signal cable or connectors between the trailer module (TRM) and the socket for the tow hitch connector.

Fault symptom[s]

1. Faulty function of trailer lamps
2. The information lamp is lit
3. Message in the display.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-E001

Condition

The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network). The diagnostic trouble code (DTC) is stored if the control module registers serious interference in the low speed sector of the CAN network (CAN communication blocked).

Note. In the event of system communication problems, it is not possible to communicate with the control module. Therefore it will only be possible to read off the diagnostic trouble code (DTC) if the fault is intermittent.

Substitute Value

1. The control module shuts itself off ("bus-off").

HINT: The control module will remain shut off until the power supply is broken (15, 30, X). When the power supply is connected the control module will make a new attempt to communicate.

Possible Source

1. Short-circuit between the control area network (CAN) wiring
2. Open-circuit in the control area network (CAN) wiring
3. Internal fault in the control module
4. Internal fault in another control module in the same part of the control area network (CAN).

Fault symptom[s]

1. Faulty function of trailer lamps.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-E003

Condition

The trailer module (TRM) compares its configuration ID with the signal configuration transmitted on the control area network (CAN) by the central electronic module (CEM). If the configuration IDs do not correspond the fault code is stored. The diagnostic trouble code (DTC) is also stored if the communication between the trailer module (TRM) and the central electronic module (CEM) is interrupted.

Note. In the event of an open-circuit in both the control area network (CAN) cables, it is not possible to communicate with the trailer module (TRM). Therefore it will only be possible to read off the diagnostic trouble code (DTC) if this type of fault is intermittent. When the diagnostic trouble code (DTC) is stored, the trailer module (TRM) responds to the diagnostic command, however normal control area network (CAN) communication does not work. ("Expulsion mode")

Substitute Value

1. None.

Possible Source

1. Incorrect CAN configuration ID (the node is not intended for this car, for example a used control module with other software/hardware)
2. Open-circuit in the control area network (CAN) wiring between the trailer module (TRM) and the central electrical module (CEM).

Fault symptom[s]

1. Faulty function of trailer lamps.

DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION TRM-E010

Condition

The trailer module (TRM) compares the battery voltage to the trailer module (TRM) with the battery voltage to the central electronic module (CEM).

The diagnostic trouble code (DTC) is stored if the battery voltage to the central electronic module (CEM) is significantly higher than the battery voltage to the trailer module (TRM).

The diagnostic trouble code (DTC) is stored if the control module detects that

1. The system voltage differs by more than 2.0 V.

Starting the control module's CAN communication.

Substitute Value

1. None.

Possible Source

1. Short-circuit to ground in the power supply cable.
2. Contact resistance or oxidation in the terminals.
3. Damaged generator (GEN).
4. Damaged battery.

Fault symptom[s]

1. Trailer lighting/Does not work

READING OFF DIAGNOSTIC TROUBLE CODES (DTC)

1. Switch on the ignition. Wait for 10 seconds. Read off the diagnostic trouble code (DTC) that is stored in the car. Make a note of the code. Report the code to VIDA customer support.