Challenger V6-3.5L (2009)
2. Using a voltmeter, perform a voltage drop test by backprobing the (K900) Sensor Ground circuit at the MAP Sensor harness connector and by
probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on
the voltmeter.
WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hand near the pulleys, belts, or fan. Do not
wear loose clothing. Failure to follow these instructions can result in possible serious or fatal injury.
3. Start the engine.
Is the voltage below 0.5 volts?
Yes
-
Go To 7
No
-
Repair the (K900) Sensor Ground circuit for excessive resistance.
-
Perform the PCM VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests/PCM Verification Test.
7. MAP SENSOR
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP Sensor and the Powertrain Control Module
(PCM).
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Search for any Technical Service Bulletins that may apply.
Were any problems found?
Yes
-
Repair as necessary.
-
Perform the PCM VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests/PCM Verification Test.
No
-
Replace the MAP Sensor.
-
Perform the PCM VERIFICATION TEST. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and
Associated Procedures/Verification Tests/PCM Verification Test.
