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P0841-LR PRESSURE SWITCH RATIONALITY (CONTINUED) Diagnostic Test 1. OTHER RELATED DTC’S PRESENT Ignition on, engine not running. With the scan tool, check for other transmission DTC’s. Are there any Loss of Prime and/or Transmission Control Relay related DTC’s present? Yes >> Refer to the Transmission category and perform the appropriate symptom. If the DTC P0944 is present, perform its respective test first. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 2 2. CONDITION P0841 PRESENT With the scan tool, check the EATX DTC EVENT DATA for P0841. NOTE: Make sure to record all EATX DTC EVENT DATA stored in the scan tool for future reference in this Does the EATX DTC EVENT DATA show the DTC P0841? Yes >> Go To 3 No >> Refer to the Symptom Catagory and perform diagnostics for the DTC reported in the EATX DTC EVENT DATA. 3. DTC SET IN REVERSE Does the EATX DTC EVENT DATA show the DTC P0841 set while in Reverse? Yes >> Go To 10 No >> Go To 4 4. LR PRESSURE SWITCH CLOSED Does the EATX DTC EVENT DATA show the LR Pressure Switch reading CLOSED when the DTC P0841 Yes >> Go To 5 No >> Go To 14 21 - 126 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |