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.

11BF1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Is there any other DTC on display?

YES: Inspect relevant DTC using "11. Diagnostics Chart with Trouble Code for AT Vehicles".

NO: Go to step 11BF2.

11BF2: 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 11BF3.

11BF3: 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 11BF4.

11BF4: 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 11BF5.

11BF5: 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 11BF6.

11BF6: 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.