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41TE ON-BOARD DIAGNOSTICS INDEX page page CCD Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Diagnostic Trouble Code Charts . . . . . . . . . . . . 146 Diagnostic Trouble Codes . . . . . . . . . . . . . . . . . 145 DRB II Scan Tool . . . . . . . . . . . . . . . . . . . . . . . 146 General Information . . . . . . . . . . . . . . . . . . . . . . 145 Limp-In Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 145 On-Board Diagnostics Information . . . . . . . . . . . 145 GENERAL INFORMATION The information in this manual is designed to help the technician understand and repair the transaxle Chrysler Corporation has developed a com- plete set of diagnostic manuals which cover the ON-BOARD DIAGNOSTICS INFORMATION The 41TE transaxle is controlled and monitored by the transmission control module. The transmission Some circuits are tested continuously; others are checked only under certain conditions. Each circuit If the on-board diagnostic system senses that one of the circuits is malfunctioning, the corresponding code CCD BUS In order to diagnose the 41TE transaxle, diagnostic trouble codes in the transmission control module’s • Internal failure of any module connected to the bus. The CCD bus should have 2.5 volts (+2.5 volts on CCD+ and -2.5 volts on CCD-). The bus error message displayed by the DRB II scan tool should be helpful in diagnosing the CCD bus. For more information on diagnosing CCD bus prob- lems, refer to the 1993 Diagnostic Procedures Manual DIAGNOSTIC TROUBLE CODES Diagnostic Trouble Codes are two-digit numbers that identify which circuit is malfunctioning. A code can be Diagnostic trouble codes can only be read with the use of the DRB II scan tool or equivalent. HARD FAULTS Any Diagnostic trouble code that comes back within 3 engine starts (reset count 3 or less) is a ‘‘Hard Fault’’. SOFT FAULTS A ‘‘Soft Fault’’ is one that occurs intermittently. It is not there every time the transmission control module LIMP-IN MODE The transmission control module continuously checks for electrical and internal transaxle problems. Ä TRANSAXLE 21 - 145 |