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G258127t68 : CHECK THE CMP SENSOR FOR FOREIGN DEBRIS 1. Remove the CMP sensor and inspect for foreign debris. Is the CMP sensor free of foreign debris? -> Yes GO to Pinpoint Test G258127t69.
-> No CLEAN the sensor and wheel. INSTALL the sensor. CLEAR the DTCs. TEST the system for normal operation. G258127t69 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR HIGH 1. Disconnect the battery negative terminal. 2. Disconnect the CMP sensor electrical connector, PI23. 3. Disconnect the ECM electrical connector, PI01. 4. Measure the resistance between PI23, pin 02 (Y) and PI01, pin 94 (Y). Is the resistance greater than 5 ohms? -> Yes REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
-> No GO to Pinpoint Test G258127t69.
G258127t70 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR SHORT TO 1. Reconnect the battery negative terminal. 2. Turn the ignition switch to the ON position. 3. Measure the voltage between PI23, pin 02 (Y) and GROUND. Is the voltage greater than 3 volts? -> Yes REPAIR the short circuit to high voltage. For additional information, refer to the wiring diagrams. CLEAR the DTC. TEST the system for normal operation.
-> No GO to Pinpoint Test G258127t71.
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