Signal Too Low. Intermittent Fault

Signal too low. Intermittent fault

Checking cables
Check the power supply cable between the control module #A39 (#A39) and mass air flow (MAF) sensor #4 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the power supply cable between the control module #A39 (#A39) and boost pressure sensor #1 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check power supply cable between control module #A39 (#A39) and air conditioning (A/C) pressure sensor #3 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check power cable between control module #B10 (#B20) and fuel tank pressure sensor connector #3 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.

Hint: Read off 5 volt power supply by clicking on the VCT 2000 symbol.

Remedy as necessary.

Other information:
- To connect the breakout box, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box.
- For information about signals, see Signal specification Signal Specifications.
- To access/replace the mass air flow (MAF) sensor, see Mass air flow sensor (MAF), replacing, B5234T9, B5244T7 Air Flow Meter/Sensor.
- To access/replace the boost pressure sensor, see Manifold absolute pressure (MAP) sensor, replacing, B5234T9, B5244T7 Removal and Replacement.










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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FAULT FOUND - DONE

Attempt New Test - Checking cables

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