|
|
Content .. 1172 1173 1174 1175 ..
Diagnostic Test 1. DETERMINING IF RELATED DTC’S ARE PRESENT With the scan tool, check for other transmission DTCs. Are any Transmission: solenoid, line pressure, speed sensor, or loss of prime DTCs present? Yes >> Refer to appropriate symptom in the Transmission category. Perform the test for P0944-LOSS OF PRIME first if it is present. No >> Go To 2 2. CHECK DTC EVENT DATA With the scan tool, read and record the DTC EVENT DATA. NOTE: Make sure to record all DTC EVENT DATA stored in the scan tool for future reference in this test Does the DTC EVENT DATA display information for the DTC P1736? Yes >> Go To 3 No >> Go To 6 3. CHECK RPM IN DTC EVENT DATA Refer to the DTC EVENT DATA recorded earlier. Does the Input RPM read zero? Yes >> Check the input speed sensor and wiring. Refer to test P0715 and diagnose as if the DTC is current. No >> Go To 4 4. CHECK LINE PRESSURE READING Refer to the DTC EVENT DATA recorded earlier. Is the line pressure reading more than 10 psi below the desired line pressure? Yes >> Go To 5 No >> Go To 6 5. PLUGGED TRANSMISSION OIL FILTER Turn the ignition off to the lock position. Remove and inspect the Transmission Oil Pan for excessive debris per the Service Information. Remove and inspect the Primary Oil Filter per the Service Information. NOTE: Make sure the Primary Transmission Oil Filter and/or seal is not cracked or split. Does the Oil Pan contain excessive debris and/or is the Primary Oil Filter cracked or plugged? Yes >> Repair the plugged, cracked, or split Primary Transmission Oil Filter and/or seal. If the Primary Trans- mission Oil Filter is plugged, refer to the Service Information for the proper hydraulic clutch repair pro- Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- No >> Remove the Transmission Oil Pump per the Service Information. Check the main Regulator Valve for sticking in its bore, scoring, and/or damage and clean and repair as necessary. If no problem is found, Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21 - TRANSMIS- 21 - 640 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS - (DIESEL) KJ |