Signal Too High - Intermittent Fault
Signal too high. Intermittent fault
Checking wiring and connectors
Check control module and air conditioning (A/C) pressure sensor connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , and loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check signal cable between engine control module (ECM) #A21 (#A21) and air conditioning (A/C) pressure sensor terminal 2 for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check cable between control module #A58 (#A58) and air conditioning (A/C) pressure sensor terminal 3 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box.
- To access/replace the control module, see
- To access/replace air conditioning (A/C) pressure sensor, see the relevant service procedure.
- For information about signals, see Signal specification Signal Description / Specification.
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 wiring and connectors
FAULT FOUND - DONE
DONE - DONE
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