Trailer Module (Trm) Diagnostic Trouble Codes: Other Volvo XC70 II

FAULT-TRACING INFORMATION

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

VERIFICATION

HINT: After carrying out the repair check that the fault has been remedied.

Scheme 9

Scheme 10

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S21935886822012082100000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair check that the fault has been remedied.

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S17800484322012082100000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair check that the fault has been remedied.

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S21303786972012082100000)

FAULT-TRACING

see FAULT-TRACING

CHECKING COMMUNICATION

The diagnostic trouble code is stored when communication between Central electronic module (CEM) and relevant control module has been interrupted. There can be a number of causes for interruptions in the communication

1. Incorrect signal configuration in control module that set diagnostic trouble code. The fault can be due to a customer or workshop replacing a control module without downloading new software for the replacement.
2. Intermittent open-circuit in one or both CAN cables in part of the network.
3. Intermittent short-circuits between the CAN cables.
4. Intermittent short-circuits between one of the CAN cables and ground or supply voltage.

Note. If there is a diagnostic trouble code (DTC) for a communication fault in a control module, check whether diagnostic trouble codes (DTCs) have been stored in the central electronic module (CEM). Central electronic module (CEM) monitors the voltage level on the CAN-lines, and is the only control module that directly can set a diagnostic trouble code for short-circuiting to ground or to voltage for any of the leads. Central electronic module (CEM) shall not be replaced in case of CAN-fault, unless troubleshooting reveals that the module has an internal fault.

Corrective actions

1. If the problem is intermittent, erase the diagnostic trouble code and check that it is not generated again.
2. If there are diagnostic trouble codes stored in several control modules that indicate lost communication on the CAN-net, first try to troubleshoot diagnostic trouble codes in Central electronic module (CEM).
3. If there are only diagnostic trouble codes that indicate lost communication on the CAN-net stored in the control module that generated this trouble code, try to solve the problem by downloading new software to the control unit.
4. Check the cables in the controller area network (CAN) according to the following fault-tracing.

Other information

1. see «GENERAL INFORMATION ABOUT FAULT-TRACING IN THE CAN NETWORK»(ref-495323-S26252627522012082100000)
2. see «CHECKING WIRING AND TERMINALS»(ref-495309-S37197517212012082100000)

1. Continue Refer to «VERIFICATION»(ref-495518-S42065086002012082100000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair check that the fault has been remedied.

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S10103641582012082100000)

see FAULT-TRACING INFORMATION

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair check that the fault has been remedied.

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S14903994102012082100000)

CHECKING THE SOFTWARE

1. Ignition off. The vehicle contains a faulty software configuration. Download new software in the Trailer module (TRM). If the problem remains after reprogramming Trailer module (TRM): Download new software to the central electronic module (CEM). If the problem remains after reprogramming of Central electronic module (CEM): Fault-trace the central electronic module (CEM). Remedy as necessary. Other information see «TRAILER MODULE (TRM)»(ref-495519-S29580375472012082100000)

1. Continue Refer to «INFORMATION»(ref-495518-S18175017672012082100000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

REPLACING A COMPONENT

1. Ignition off.
2. Cut off voltage feed to Trailer module (TRM) by removing the battery's minus cable. The control module has registered an internal fault. Replace trailer module (TRM). Other information see «TRAILER MODULE (TRM)»(ref-495519-S29580375472012082100000)

1. Continue Refer to «INFORMATION»(ref-495518-S26436975212012082100000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

1. Ignition off. The control module has registered an internal fault in the software. Download new software in the Trailer module (TRM). Other information see «TRAILER MODULE (TRM)»(ref-495519-S29580375472012082100000)

1. Continue Refer to «INFORMATION»(ref-495518-S16971467652012082100000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

Note. This trouble code is only relevant for troubleshooting and action in the following cases

1. The trouble code is active in the present driving cycle and has been active for a longer period of time.
2. The customer experiences malfunction that can be attributed to the trouble code.

In other cases, the DTC does not indicate a fault and must therefore be ignored and only erased.

Do you want to continue fault-tracing?

1. YES Refer to «CHECKING THE WIRING AND TERMINALS»(ref-495518-S07085942142012082100000)
2. NO OKAY: Troubleshooting has been completed.

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair check that the fault has been remedied.

1. Reinstall the connectors, components etc.
2. If the battery negative lead has been removed: Connect the battery negative lead.
3. Switch on the ignition. Wait 10 seconds. Read diagnostic trouble codes by clicking the VCT2000 symbol in VIDA (Volvo scan tool). If the fault is intermittent, the fault has been remedied.

Is the fault intermittent?

1. YES VERIFIED: Troubleshooting has been completed.
2. NO Refer to «INFORMATION»(ref-495518-S23574778842012082100000)