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 MANUALSVOLVO2001C70 COUPE L5-2.3L TURBO VIN 53 B5234T3REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSECM CODES (ENGINE CONTROL MODULE)ECM-6300ETS-LAMP OUTPUT. SIGNAL TOO LOW. PERMANENT FAULTSIGNAL TOO LOW. PERMANENT FAULT
2001 Volvo C70 Coupe L5-2.3L Turbo VIN 53 B5234T3
Signal Too Low. Permanent Fault
2001 Volvo C70 Coupe L5-2.3L Turbo VIN 53 B5234T3SECTION Signal Too Low. Permanent Fault
Signal too low. Permanent fault
Checking components and wiring
Check the cable between the engine control module (ECM) terminal #B41 (#B51) and combined instrument panel terminal #B1 (terminal #31). Check for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Remedy as necessary.
Other information:
- To connect the engine control module (ECM) breakout box, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box
- To connect the combined instrument panel breakout box, see
- To access and replace the combined instrument panel, see Driver information module (DIM), replacing Driver Information Module (DIM), Replacing
- For information about signals, see Signal specification Signal Specifications.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reinstall connectors, components etc.
- Start the engine.
- Activate ETS lamp.
- Check that function is OK.
Is the function OK?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
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.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking components and wiring
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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.