Chrysler Sebring 2004 Service Manual page 2151

DRIVEABILITY - GAS
P1599-A/C PRESSURE SENSOR VOLTS TOO LOW —
TEST
3 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
With the DRBIII , monitor the A/C Pressure Sensor voltage.
Turn the ignition on.
Is the voltage above 0.6 of a volt?
Yes → Replace the A/C Pressure Sensor.
No
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 A/C Pressure Sensor Signal circuit
in the A/C Pressure Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the A/C Pressure Sensor Signal circuit for a short to
No
5 Turn the ignition off.
Disconnect the A/C Pressure Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the A/C Pressure Sensor Signal circuit and the
Sensor ground circuit in the A/C Pressure Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the A/C Pressure Sensor Signal circuit for a short to the
No
6 If there are no possible causes remaining, view repair.
Repair
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 5 Volt Supply circuit in the A/C
Pressure Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the 5 Volt Supply circuit for a short to ground.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Go To 4
ground.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Go To 5
Sensor ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Go To 6
Replace and program the Powertrain Control Module Module in
accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
→ Go To 8
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Continued
APPLICABILITY
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