TM-9-2320-365-20-3 LMTV Unit Maintenance Manual M1078 Series - Volume 3 Download
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TM 9-2320-365-20-3 NOTE • WTEC III transmission ECU is capable of storing (logging) up to five diagnostic codes in memory. The diagnostic code positions are identified as d1, d2, d3, d4, and d5. Diagnostic code position d1 represents the most recently logged diagnostic code. • WTEC III TPSS will display the four position diagnostic codes one character at a time, beginning with the most recently logged diagnostic code (d1). The following example shows main code 24 sub code 12 logged in diagnostic code position d1: 1. Code list position - d,1 2. Main code - 2,4 3. Sub code - 1,2 4. Code position repeats - d,1,2,4,1,2 • Display of first diagnostic code (d1) will be repeated until MODE button is pressed to view remaining diagnostic codes (d2, d3, d4, and d5) or until diagnostic mode is exited. • Any diagnostic code position which does not have a diagnostic code logged will display "--". (2) Record first diagnostic code (d1) displayed on WTEC III TPSS (3). NOTE Pressing MODE button momentarily after fifth diagnostic code (d5) is displayed will cause code positions displayed to begin again with first diagnostic code (d1). (3) Press MODE button (4) momentarily to view next diagnostic code (d2). (4) Record diagnostic code, if any, displayed on WTEC III TPSS (3). (5) Perform steps (3) and (4) for remaining diagnostic code positions (d3, d4, and d5). (6) Refer to Table 8-2. WTEC III Diagnostic Code List and Description for identification of diagnostic codes and to determine which troubleshooting task(s) to perform. Table 8-2. WTEC III Diagnostic Code List and Description MAIN CODE SUB CODE DESCRIPTION PERFORM TROUBLESHOOTING TASK 13 ANY ECU input voltage, low/high f37 21 ANY Throttle position sensor, failed low/high f30 8-15