Index Chrysler Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager - service repair manual 1992 year
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4-SPEED ELECTRONIC TRANSAXLE ON-BOARD DIAGNOSTICS INDEX page page Ccd Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 DRBII (Diagnostic Read-Out Box) . . . . . . . . . . . . 158 Fault Code Charts . . . . . . . . . . . . . . . . . . . . . . . 158 General Information . . . . . . . . . . . . . . . . . . . . . . . 157 Limp-In Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 On-Board Diagnostics Information . . . . . . . . . . . . 157 System Fault Messages/Codes . . . . . . . . . . . . . . 157 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 174 GENERAL INFORMATION The information in this manual is designed to help the technician understand and repair the electronic Chrysler Corporation has developed a com- plete set of diagnostic manuals which cover di- ON-BOARD DIAGNOSTICS INFORMATION The 4-Speed Electronic Transaxle is controlled and monitored by the EATX controller. The controller moni- Some circuits are tested continuously; others are checked only under certain conditions. Each circuit monitored by the If the on-board diagnostic system senses that one of the circuits is malfunctioning, the corresponding fault CCD BUS In order to diagnose the EATX, fault codes in the EATX controller’s memory should be read using the • Internal failure of any controller connected to the 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 DRBII should be helpful in diagnosing the CCD bus. For more detailed information on diagnosing CCD bus problems, refer to the 1992 diagnostic procedures Manual for SYSTEM FAULT MESSAGES/CODES Fault codes are two-digit numbers that identify which circuit is malfunctioning. A fault code can be set Fault code can only be read with the use of the DRBII Read-out Box or equivalent. HARD FAULTS Any fault code that comes back within 3 engine starts (reset count 3 or less) is a ‘‘Hard Fault’’. This SOFT FAULTS A ‘‘Soft Fault’’ is one that occurs intermittently. It is not there every time the controller checks the circuit. LIMP-IN MODE The controller continuously checks for electrical and internal transaxle problems. When a problem is • Neutral • Reverse • Second Gear . TRANSAXLE 21 - 157 |