General System Description

GENERAL INFORMATION
Trouble occurring in the electronically controlled transaxle can stem from one of three sources; the engine. the electronically controlled transaxle electronic control unit or the transaxle itself. Before troubleshooting. determine in which of these three sources the problem lies, and begin troubleshooting with the simplest operation, gradually working up in order of difficulty.

BASIC TROUBLESHOOTING
Before troubleshooting the electronically controlled transaxle, first determine whether the problem is electrical or mechanical. To do this, just refer to the basic troubleshooting flow-chart provided.
If the cause is already known, using the basic troubleshooting chart along with the general troubleshooting chart to speed the procedure.

HINT:
- If diagnostic trouble code Nos. 42, 61, 62 or 63 are output, the overdrive OFF indicator light will begin to blink immediately to warm the driver. However, an impact or shock may cause the blinking to stop; but the trouble code will still be retained in the ECM memory until canceled out.
- There is no warning for diagnostic trouble code No.64.
- In the event of a simultaneous malfunction of both No.1 and No.2 vehicle speed sensors. no diagnostic trouble code will appear and the fail-safe system will not function. However, when driving in the D position, the transaxle will not up-shift from first gear, regardless of the vehicle speed.