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.
Faulty Signal. Intermittent Fault
2004 Volvo V70 L5-2.4L VIN 64 B5244S6SECTION Faulty Signal. Intermittent Fault
Faulty signal. Intermittent fault
STC or DSTC
Question
Question
Does the car have a DSTC system?
Yes - DSTC
No - STC
------------------------
STC - Intermittent fault
DSTC - DSTC
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Intermittent fault
Check the control module and pump motor connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the wiring between the pump motor and the pump motor connector for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the cable between the battery and control module terminal #47 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 breakout box, see Connecting the ABS breakout box Pinout Values and Diagnostic Parameters.
- To disconnect the ABS control module connector, see Replacing the control module for ABS and dynamic stability and traction control (DSTC) Replacing the Control Module for ABS and Dynamic Stability and Traction Control (DSTC).
- For other values, see Signal specification, ABS / DSTC (dynamic stability and traction control) control module Signal Specification.
Continue - Fault-tracing information
DONE
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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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DONE - DONE
FAULT FOUND - Fault Found
Attempt New Test - Intermittent fault
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DSTC
Faulty signal. Intermittent fault
Intermittent fault
Check the control module and pump motor connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the wiring between the pump motor and the pump motor connector for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the cable between the battery and control module terminal #47 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 breakout box, see Connecting the ABS/DSTC breakout box Pinout Values and Diagnostic Parameters.
- To disconnect the ABS control module connector, see Replacing ABS / DSTC (dynamic stability and traction control) control module Replacing ABS / DSTC (Dynamic Stability and Traction Control) Control Module.
- For other values, see Signal specification, ABS / DSTC (dynamic stability and traction control) control module Signal Specification.
Continue - Fault-tracing information
DONE
------------------------
Fault-tracing information
Information
DONE - DONE
FAULT FOUND - Fault Found
Attempt New Test - Intermittent fault
------------------------
FAULT FOUND - Fault Found
DONE - 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.