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P0532-A/C SENDING UNIT VOLTS TOO LOW (CONTINUED) For the Engine circuit diagram (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CON- For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes OTHER DTC’S A/C PRESSURE SENSOR (C918) SIGNAL CIRCUIT SHORTED TO (K55) RETURN CIRCUIT (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO (K55) RETURN CIRCUIT (C918) SIGNAL CIRCUIT OPEN FROM ECM HARNESS CONNECTOR TO A/C HARNESS CONNECTOR (F855) 5-VOLT SUPPLY CIRCUIT OPEN FROM ECM HARNESS TO A/C HARNESS CONNECTORS (C918) SIGNAL CIRCUIT SHORTED TO GROUND (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND ECM INTERMITTENT CONDITION Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. OTHER DTC’S Turn the ignition on. With the scan tool, read DTCs. Are other DTC’s present? Yes >> Repair other DTC’s first. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC- No >> Go To 2 9 - 1302 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |