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P0850-PARK/NEUTRAL SWITCH PERFORMANCE (CONTINUED) 2. TRS (T41) SENSE (P/N SENSE) CIRCUIT OPEN Turn the ignition off. Disconnect the C3 PCM harness connector. Disconnect the Transmission Range Sensor harness connector. CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance below 5.0 ohms? Yes >> Go To 3 No >> Repair the open in the TRS (T41) Sense (P/N Sense) cir- cuit. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 3. TRS (T41) SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the TRS (T41) Sense Is the resistance above 100k ohms? Yes >> Go To 4 No >> Repair the short to ground in the TRS (T41) Sense (P/N Sense) circuit. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 9 - 606 ENGINE ELECTRICAL DIAGNOSTICS ND |