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Volvo Engine D13F Fault Code: EF3602 Critical Bus Communication Failure
Volvo Engine D13F Fault Code: EF3602 Critical Bus Communication Failure
SHOP TALK CONTAINS CRITERIA FOR THE FOLLOWING:
1. Instrument Control Unit (HMIM)
2. Vehicle Control Unit (V-ECU)
3. Vehicle Control Unit 2 (V2-ECU)
INSTRUMENT CONTROL UNIT (HMIM)
DETECTION CONDITIONS:
The Instrument Control Unit (HMIM) registers:
1. That bus communication is missing with E-ECU on J1708/J1587.
2. That bus communication is missing with V-ECU on J1708/J1587.
3. That bus communication is missing with V-ECU on CAN1/J1939 + that bus communication is missing with V-ECU on CAN2/J1939.
4. That bus communication is missing with V2-ECU on CAN1/J1939 + that bus communication is missing with V2-ECU on CAN2/J1939.
SYMPTOM:
1. Starter motor cannot be activated.
2. The machine does not go into gear.
POSSIBLE CAUSES:
1. Ongoing diagnostic software operation: ECU, Programming Parameter programming.
2. Open circuit on bus communication (cable harness).
3. Short-circuit to frame ground or voltage.
4. Leads in cable harness short-circuited to each other.
5. Defective ECU.
VEHICLE CONTROL UNIT (V-ECU)
DETECTION CONDITIONS:
The Vehicle Control Unit (V-ECU) registers:
1. That bus communication is missing with HMIM on J1708/J1587.
2. That bus communication is missing with E-ECU on CAN1/J1939.
3. That bus communication is missing with HMIM on CAN1/J1939 + that bus communication is missing with HMIM on CAN2/J1939.
4. That bus communication is missing with V2-ECU on CAN1/J1939 + that bus communication is missing with V2-ECU on CAN2/J1939.
SYMPTOM:
1. Starter motor cannot be activated.
2. The machine does not go into gear.
POSSIBLE CAUSES:
1. Ongoing diagnostic software operation: ECU, Programming Parameter programming.
2. Open circuit on bus communication (cable harness).
3. Short-circuit to frame ground or voltage.
4. Leads in cable harness short-circuited to each other.
5. Defective ECU.
VEHICHLE CONTROL UNIT 2 (V2-ECU)
DETECTION CONDITIONS:
The Vehicle Control Unit 2 (V2-ECU) registers:
1. That bus communication is missing with E-ECU on CAN1/J1939 + that bus communication is missing with E-ECU on J1708/J1587.
2. That bus communication is missing with HMIM on CAN1/J1939 + that bus communication is missing with HMIM on CAN2/J1939.
3. That bus communication is missing with V-ECU on CAN1/J1939 + that bus communication is missing with V-ECU on CAN2/J1939.
SYMPTOM:
1. Starter motor cannot be activated.
2. The machine does not go into gear.
POSSIBLE CAUSES:
1. Ongoing diagnostic software operation: ECU, Programming Parameter programming.
2. Open circuit on bus communication (cable harness).
3. Short-circuit to frame ground or voltage.
4. Leads in cable harness short-circuited to each other.
5. Defective ECU.
Volvo Engine D13F Fault Code: EF3601 Performance Loss Bus Communication Failure
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