Chrysler Sebring 2004 Service Manual page 2128

P1492-AMBIENT/BATT TEMP SEN VOLTS TOO HIGH —
TEST
3 Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Connect a jumper wire between the (K25) AAT Sensor Signal circuit and the (K4)
Sensor Ground circuit in the Ambient Temperature Sensor harness connector.
Turn the ignition on.
With the DRBIII , read Ambient Temperature Sensor voltage.
Is the voltage below 1.0 volt?
Yes → Replace the Ambient Temperature Sensor.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K25) AAT Sensor Signal circuit between the Ambient
Temperature Sensor harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the (K25) AAT Sensor Signal circuit.
No
5 Turn the ignition off.
Disconnect the Ambient Temperature Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K4) Sensor Ground circuit between the Ambient
Temperature Sensor harness connector and the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open in the (K4) Sensor ground circuit.
No
6 NOTE: Before Continuing: Disconnect the PCM harness connector and
check the related wiring terminals for corrosion, damage or terminal push
out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
Were any of the above conditions present?
Yes → Repair as necessary.
→ Replace and program the Powertrain Control Module in accor-
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
199
Continued
APPLICABILITY
All
All
All
All