P0733

DTC PO731
GEAR 1 INCORRECT RATIO (GR - 1)

DTC P0732
GEAR 2 INCORRECT RATIO (GR - 2)

DTC PO733
GEAR 3 INCORRECT RATIO (GR - 3)

DTC PO734
GEAR 4 INCORRECT RATIO (GR - 4)

DTC Detecting Condition
Two consecutive trips 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".











1. Check any other DTC (Besides DTC P0731, P0732, P0733 and P0734) on display.
[CHECK]: Is there any other DTC on display?
[YES]: Inspect relevant DTC chart.
[NO]: Go to step 2.

2. 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 3.

3. Check vehicle speed sensor 1 circuit.
[CHECK]: Is there any trouble in vehicle speed sensor 1 circuit?
[YES]: Repair or replace vehicle speed sensor 1 circuit.
[NO]: Go to step 4.

4. 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 5.

5. Check Engine speed input circuit.
[CHECK]: Is there any trouble in engine speed input circuit?
[YES]: Repair or replace engine speed input circuit.
[NO]: Go to next [CHECK].

[CHECK]: Is there poor contact in TCM connector?
[YES]: Repair poor contact in TCM connector.
[NO]: Go to next [CHECK].

[CHECK]: Is there any mechanical trouble in automatic transmission?
[YES]: Repair or replace automatic transmission.
[NO]: Replace TCM with a new one.