P0734

DTC P0734 - GEAR 4 INCORRECT RATIO

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Shift point too high or too low; engine brake not effected in "3" range; excessive shift shock; excessive tight corner "braking"

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How to Clear Diagnostic Trouble Codes. Clearing Diagnostic Trouble Codes





WIRING DIAGRAM

10BF1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Is there any other DTC on display?

YES: Inspect relevant DTC using "10. Diagnostics Chart with Trouble Code".

NO: Go to step 10BF2.

10BF2: CHECK THROTTLE POSITION SENSOR CIRCUIT.
Check throttle position sensor circuit.

CHECK: Is there any trouble in throttle position sensor circuit?

YES: Repair or replace throttle position sensor circuit.

NO: Go to step 10BF3.

10BF3: CHECK VEHICLE SPEED SENSOR 2 CIRCUIT.
Check vehicle speed sensor 2 circuit.

CHECK: Is there any trouble in vehicle speed sensor 2 circuit?

YES: Repair or replace vehicle speed sensor 2 circuit.

NO: Go to step 10BF4.

10BF4: CHECK TORQUE CONVERTER TURBINE SPEED SENSOR CIRCUIT.
Check torque converter turbine speed sensor circuit.

CHECK: Is there any trouble in torque converter turbine speed sensor circuit?

YES: Repair or replace torque converter turbine speed sensor circuit.

NO: Go to step 10BF5.

10BF5: CHECK POOR CONTACT.
Check poor contact in TCM connector.

CHECK: Is there poor contact in TCM connector?

YES: Repair poor contact in TCM connector.

NO: Go to step 10BF6.

10BF6: CHECK MECHANICAL TROUBLE.
Check mechanical trouble in automatic transmission.

CHECK: Is there any mechanical trouble in automatic transmission?

YES: Repair or replace automatic transmission.

NO: Replace TCM.