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Check reference values between ECM terminals and ground under the following conditions: ECM TERMINAL NO. ITEM CONDITION DATA (DC VOLTAGE) 72 Camshaft Position (CMP) sensor • Ignition switch: ON • Engine: Not cranking 4.8 - 5.2 V • Engine: Cranking 0.4 - 3.0 V • Engine: Idle 0.5 - 2.0 V On Board Diagnostic Logic DTC NO. DTC DEFINITION DTC DETECTION CONDITION DTC SET CONDITION POSSIBLE CAUSE 23 CMP sensor Crank engine Signal output is no • CMP sensor • Harness or • ECM DTC Confirmation Procedure: Before performing the following procedure, confirm that battery voltage is more than 12 V. • Turn ignition switch off. • Connect the X-431 scan tool to the Data Link Connector (DLC) - use the most current software available. • Turn ignition switch on. • With the scan tool, record and erase stored DTCs in the ECM. • Start engine and warm it to normal operating temperature, then select view DTC and data stream. • If the DTC is detected, the DTC condition is current. Go to Diagnostic Procedure - Step 1. • If the DTC is not detected, the DTC condition is intermittent (See Diagnostic Help and Intermittent DTC Trou- bleshooting in Section 03 Electronic Engine Controls for more information. NOTE : Diagnostic Procedure 1. CHECK GROUND CONNECTION • Turn ignition switch off. • Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con- trols). • Inspect the ground connection E-208 (See Vehicle Wiring Harness Layout - Engine Room Harness (With Mit- subishi 2.4L Engine) in Section 16 Wiring). Is the ground connections OK? Yes >> Go to the next step. No >> Repair or replace ground connection. DIAGNOSIS & TESTING 03
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