Patriot 4WD L4-2.4L (2009)
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 hands near the pulleys, belts or fan. Do not
wear loose clothing. Failure to follow these instructions may 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: 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: 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: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification
Tests/PCM Verification Test
