Torrent FWD V6-3.4L (2007)
IMPORTANT: You must complete the Circuit/System Verification before proceeding with Circuit/System Testing.
1. Disconnect the CKP sensor connector.
2. Test for less than 1 ohm of resistance between low reference circuit and ground.
-
If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit and ground.
-
If less than the specified range, test the 5-volt reference circuit for an open/high resistance or short to ground. If the circuit tests normal,
replace the ECM.
-
If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the ECM.
4. Ignition ON, test for 4.8-5.2 volts between the signal circuit and ground.
-
If less than the specified range, test signal circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the ECM.
-
If greater than the specified range, test signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
5. Ignition ON, using a jumper wire connected to ground, momentarily touch the CKP sensor signal circuit repeatedly. The CKP Active Counter
parameter should increment.
-
If the CKP Active Counter parameter does not increment, replace the ECM.
6. Ignition OFF, inspect the CKP sensor for looseness and correct installation
7. Touch the jumper wire to the CKP sensor signal circuit repeatedly at the connector. The CKP Active Counter parameter should increment.
-
If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
8. Inspect the engine for the following conditions:
-
Engine oil for debris
-
Crankshaft reluctor wheel for damage
-
The timing chain, tensioner, and sprockets for wear or damage
-
If debris is found in the engine oil, inspect the internal engine components to determine the cause. Repair or replace any worn or damaged
components.
COMPONENT TESTING
IMPORTANT: You must complete the Circuit/System Testing before proceeding with Component Testing.
1. Remove the CKP sensor from the engine and inspect the sensor and the O-ring for damage.
2. Connect the CKP Sensor connector to the CKP Sensor; turn ON the ignition, with the engine OFF.
3. Observe the CKP Active Counter parameter on the scan tool; pass a steel object by the tip of the sensor repeatedly. The CKP Active Counter
parameter should increment.
-
If the parameter does not increment, replace the CKP sensor.
REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
-
Crankshaft Position Sensor Replacement for CKP sensor replacement
-
Control Module References for ECM replacement, setup, and programming See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and Procedures See: Testing and
Inspection/Programming and Relearning
