TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
With the DRBIIIt, monitor the A/C Pressure Sensor voltage.
Turn the ignition on.
Is the voltage above 0.6 of a volt?
All
Yes → Replace the A/C Pressure Sensor.
Perform POWERTRAIN VERIFICATION TEST VER-2-NGC.
No → Go To 4
4 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (C18)A/C Pressure Signal circuit in
the A/C Pressure Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes → Repair the short to ground in the (C18) A/C Pressure Signal
circuit.
Perform POWERTRAIN VERIFICATION TEST VER-2-NGC.
No → Go To 5
5 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance betweenthe (C18)A/C Pressure Sensor Signal circuit and the
(K4) Sensor ground circuit in the A/C Pressure Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes → Repair the short to the (K4) Sensor ground circuit in the(C18)A/C
Pressure Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER-2-NGC.
No → Go To 6
6 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER-2-NGC.
7 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K7) 5 Volt Supply circuit in theA/C
Pressure Sensor harness connector.
Is the resistance below 100 ohms?
All
Yes → Repair the short to ground in the (K7) 5 Volt Supply circuit.
Perform POWERTRAIN VERIFICATION TEST VER-2-NGC.
No → Go To 8
211
DRIVEABILITY - NGC
P0532-A/C PRESSURE SENSOR LOW — Continued
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