Signal Too High - Intermittent Fault
Signal too high. Intermittent fault
Checking the wiring
Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an intermittent short-circuit to supply voltage.
Check the power supply cable between the control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for an intermittent short-circuit to supply voltage.
Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for an intermittent short-circuit to supply voltage.
Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for an intermittent short-circuit to supply voltage.
Hint: Read off the 5-volt power supply by clicking on the VCT2000 symbol.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For information about signals on 5 cylinder engines, see Signal specification Signal Specification, ECM
- For information about signals on 6 cylinder engines, see Signal specification Signal Specification, ECM
- To access or replace the mass air flow (MAF) sensor, see
- To access or replace the boost pressure sensor, see Temperature and pressure sensor, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.
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 the wiring
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