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2. CHECK FOR LOSS OF PRIME DTC With the scan tool, check for other Transmission DTC’s. Is the DTC P0944 present also? Yes >> Refer to the Transmission category and perform the appropriate diagnostic procedure. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMISSION/ No >> Go To 3 3. CHECK TO SEE IF P0846 IS CURRENT With the scan tool, Check the STARTS SINCE SET counter for P0846. NOTE: This counter only applies to the last DTC set. Is the STARTS SINCE SET counter 2 or less? Yes >> Go To 4 No >> Go To 9 4. PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Relay. CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO RESPONSE, condition and disable NOTE: Check connectors - Clean/repair as necessary. With the Transmission Simulator, turn the Pressure Switch selector to 2/4. With the scan tool , monitor the 2/4Pressure Switch state while pressing the Pressure Switch Test button on the Did the 2/4 Pressure Switch state change? Yes >> Go To 8 No >> Go To 5 21 - 566 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS LX |