Test 49CODE 46 Test Procedure-

Code 46 can only be generated by an upgraded transaxle controller P/N. If you find code 46 in memory, the vehicle already has the upgrade - DO NOT REPLACE THE CONTROLLER.

Code 46 is primarily set in memory after the controller has made 3 unsuccessful attempts at a proper 304 upshift. Controller logic then prevents the transaxle from any further upshift attempts and causes it to remain in third gear until downshifts into first gears have been obtained.

Code 46 will not cause a limp-in (default to second) condition.

Faulty connections at the Turbine or Output speed sensors can result in aborted 3-4 upshifts and set code 46 in memory. Carefully inspect the Turbine and Output speed sensor connectors for anything that could cause an intermittent connection to the sensor (i.e., spread, bent or misaligned terminals). If the connectors are OK, proceed with the road test below.

Road Test

Road test to confirm that code 46 can be repeated by using the following guidelines:

A. Use the DRBII to clear any fault codes before load testing.

B. Leaving the DRBII connected, road test the vehicle using the guidelines found in step # 3 of Test 50, then continue to road test with an emphasis on the 3-4 shift. Use a variety of throttle settings for doing the 3-4 shift.

C. If transaxle performance is judged to be acceptable, return the vehicle to the owner.

D. If code 46 continues to repeat, go to Test 50 Step 7.