|
|
Content .. 1054 1055 1056 1057 ..
P0944-LOSS OF HYDRAULIC PUMP PRIME For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - For a complete wiring diagram Refer to Section 8W • When Monitored: • Set Condition: Possible Causes SHIFT LEVER OUT OF ADJUSTMENT INPROPER FLUID LEVEL CRACKED OR IMPROPERLY INSTALLED PRIMARY OIL FILTER OR SEAL LOOSE COOLER RETURN FILTER STUCK OR STICKING MAIN REGULATOR VALVE TRANSMISSION OIL PUMP Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Theory of Operation The Loss of prime test is used to prevent transmission defaults and erroneous fault codes during temporary loss of The Loss of Prime DTC is set by a loss of hydraulic pressure in the transmission system. This condition, if sus- Diagnostic Test 1. SHIFT LEVER POSITION TEST Using the scan tool, perform a Shift Lever Position test. Follow the instructions on the scan tool. Did the Shift Lever Position Test pass? Yes >> Go To 2 No >> Refer to the Transmission category and perform the appropriate symptom. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 616 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS ND |