Chrysler Concorde 2004 Service Manual page 723

P0110-INTAKE AIR TEMPERATURE SENSOR STUCK —
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION symptom in the
No
2 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
NOTE: Visually inspect both the component and the PCM connectors. Look
for damaged, partially broken wires, and backed out or corroded terminals.
Ignition on, engine not running.
Measure the voltage on the (K21) IAT Signal circuit in the IAT Sensor harness
connector.
Is the voltage above 5.2 volts?
Yes → Repair the short to battery voltage in the (K21) IAT Signal circuit.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
Ignition on, engine not running.
With the DRBIII , read the IAT Sensor voltage.
Is the voltage above 4.9 volts?
Yes → Go To 4
→ Go To 7
No
4 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
Using a jumper wire, jumper across the IAT Sensor harness connector.
Ignition on, engine not running.
With the DRBIII , read the IAT Sensor voltage.
Is the voltage below 1.0 volt?
Yes → Replace the IAT Sensor.
→ Go To 5
No
5 Turn the ignition off.
Disconnect the IAT Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K21) IAT Signal circuit from the IAT Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 6
→ Repair the open in the (K21) IAT Signal circuit.
No
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
65
Continued
APPLICABILITY
All
All
All
All
All