TRNW Diagnostic Help Database 45RFE Diagnostic Help

45RFE Preliminary Diagnostic Tests Check the transmission fluid level. Low fluid levels can cause allot of problems, so be sure to top it off before making any diagnostic attempts. If the transmission is found to be low on fluid, be sure to check for leaks. Some DTC's are difficult to reset. Read the general fault code information to determine how to reproduce the DTC that you are trying to diagnose. Make sure you have a 'Hard' code before proceding with diagnostic testing. 'Soft' or intermittant DTC's will require more intense diagnostic procedures. Check for the correct manual linkage or cable adjustment. Perform a 'Shift Lever Test' with a scan tool. If the test fails, perform tests for code P0706 Check and repair all engine DTC's before diagnosing transmission problems. Poor engine performance can cause transmission shift timing issues. Make sure that your battery is fully charged. If the battery isn't fully charged, it could cause false readings in your diagnostic tests. IMPORTANT: Check all wiring connectors related to the circuit involved very closely. Look for broken, spread, or pushed-in terminals. Repair all wiring connectors as necessary. Check all CVI’s and make sure they are within specifications. Check the version number of the Transmission Control Module (TCM). Some problems can be corrected by software upgrades to the TCM. Check the TRNW Fix Database for similar problems.

Important Note: All participants of this group agree to accept all responsibility and risk associated with any and all information received through TRNW. Furthermore, all participants agree not to hold TRNW or its members responsible for any and all complications of any kind that may be related in any way to TRNW or its members.