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P0841-LR PRESSURE SWITCH RATIONALITY (CONTINUED) 11. (T50) LR PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND Measure the resistance between ground and the (T50) LR Pressure Is the resistance below 5.0 ohms? Yes >> Repair the (T50) LR Pressure Switch Sense circuit for a short to ground. Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 12 12. PCM POWERS AND GROUNDS Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or Were there any problems found? Yes >> Repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 13 13. ROAD TEST THE VEHICLE With the scan tool, clear the DTC and road test the vehicle. Try to duplicate the conditions in which the DTC originally set using the EATX DTC EVENT DATA recorded earlier. Did the DTC P0841 reset? Yes >> Replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 17 HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 453 |