Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2004V70 L5-2.5L TURBO VIN 59 B5254T2REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSECM CODES (ENGINE CONTROL MODULE)ECM-6B00SIGNAL MISSING - INTERMITTENT FAULT
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2
Signal Missing - Intermittent Fault
2004 Volvo V70 L5-2.5L Turbo VIN 59 B5254T2SECTION Signal Missing - Intermittent Fault
Signal missing. Intermittent fault
Checking component and wiring
Check cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Remedy as necessary.
Other information
- To connect the engine control module (ECM) breakout box, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- To connect the combined instrument panel breakout box, see Connecting the Driver Information Module (DIM) test box Connecting the Driver Information Module (DIM) Test Box
- For information about signals, see Signal specification Signal Description / Specification.
- For information about the combined instrument panel connector, see Driver Information Module (DIM) signal description Signal Specification, Driver Information Module (DIM).
Continue - Fault-tracing information
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - Fault Found
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Attempt New Test - Checking component and wiring
FAULT FOUND - DONE
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.