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PRE-DIAGNOSTIC CHECK OUT For a complete wiring diagram Refer to Section 8W. Diagnostic Test 1. PRE-DIAGNOSTIC CHECK OUT Check the transmission fluid level. If the fluid level is low, locate and repair any leaks and fill the transmission to the Check the battery. To avoid false diagnosis, testing should only be performed with the battery fully charged. With the scan tool, read Engine (PCM) DTCs. If DTCs are present, refer to the Driveability Category and perform to With the scan tool, read Transmission (TCM) DTCs. Record all Stored, Active, and Pending DTC information. Diag- With the scan tool, read EATX DTC EVENT DATA. Use this data to identify the conditions in which the DTC was Performing a Battery Disconnect will clear all EATX DTC EVENT DATA and reset all learned Transmission values to With the scan tool, perform the Shift Lever Position Test. If the test does not pass, refer to the diagnostic procedure For Gear Ratio Error DTCs, use the scan tool to view CVI Monitor data. Read and record the Clutch Volume Index Use the wiring diagram as a guide. Inspect the wiring and connectors related to this circuit. Repair as necessary. Refer to the When Monitored and Set Conditions for this DTC. DTCs can set at ignition on, at start up, after driving Refer to applicable Technical Service Bulletins (TSBs) for controller software update information. Some conditions Refer to any Service Information Tune Ups or Technical Service Bulletins that apply to this symptom. Were there any repairs made that fixed the vehicle? Yes >> Testing complete. No >> Refer to the Transmission category and perform the appropriate diagnostic procedure(s). 21 - 26 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |