A/T - Intermittnet Harsh Shifts

9230hyundai01

Group
TRANSAXLE

Number
91-40-002

Date
APRIL, 1992

Model
SCOUPE


Subject

AUTOMATIC TRANSAXLE SHIFTS HARD


Some 1991, 1992 Scoupes with automatic transaxles may experience intermittent harsh shifting during first-to-seoond upshift and/or second-to-first downshift at low vehicle speeds. Generally, this condition occurs when the pulse generator "B" loses continuity in connector "T01".

Excessive side load experienced by the pulse generator wires from engine movement and the restriction of a nearby tie wrap may cause the male/female pins to distort and lose continuity in connector T01. To correct this hard shifting condition, use the service procedure listed.





SERVICE PROCEDURE:

Note:
Check and adjust transaxle fluid level prior to road testing if necessary.

1. Verify that the M.U.T. (Multi-Use Tester) shows code 33 and /or code 13.

2. Cut the tie wrap shown in Fig. 1 to relieve the tension on the pulse generator "B" wires.

3. Separate the male and female portions of connector "T01".





4. Inspect each distorted female pin, reshape by inserting a small flat screwdriver between the pins and bending them gently by rocking the screwdriver side to side. (Figure 3).

5. Bend each male pin gently away from the plastic separator with a small flat screwdriver.





6. Verify the continuity of # 3 and # 4 pulse generator wires from the "T01" connector female side to the # 5 and # 12 pins on TCU "T10-2" (Figure 4).

7. Reconnect male and female connectors at "T01" and "T10-2".

8. Erase any previously stored transmission codes.

9. Road test the vehicle.


WARRANTY INFORMATION

MODEL OPERATION 0P. CAUSAL NATURE CAUSE
MODEL YEAR CODE OPERATION TIME PART CODE CODE
NUMBER

Scoupe 1991/ 45643R0F Pulse Generator 0.4 17993- C15 N26
1992 Connector Pin Repair 13000