Diagnostic Trouble Code (DTC) Inspection Procedures - P0734
DESCRIPTION AND OPERATION
• If the output signal of pulse generator "B" [PG-B] (output shaft speed), multiplied by the 4th gear ratio, does not match the output signal of pulse generator "A" [PG-A] (input shaft speed) after 4th gear is engaged, DTC P0733 is stored in the TCM memory.
TROUBLESHOOTING HINTS
| Malfunction Detection Conditions | Possible Cause | Inspection Item |
| • Engine speed > 400 rpm • Intermediate shaft speed more than 900 rpm • ATF temperature: above 60 °C • TCM determines the signal does not match the programmed normal parameters |
• Malfunction of pulse generator "A" [PG-A] or pulse generator "B" [PG-B] • Malfunction of the intermediate shaft driven gear • Malfunction of the end clutch drum • Malfunction of downshift brake • Malfunction of overrun clutch |
• Malfunction of pulse generator circuit • Forced downshift brake slipping |
| <SYMPTOM DESCRIPTION> • When this DTC occurs, the transaxle enters fail-safe mode (shift change prohibited) and is fixed in 3rd gear ("D" range) or 2nd gear ("2" or "L" range) • DTCs P0717 or P0722 (pulse generator DTCs) may also be set together with this DTC |
TROUBLESHOOTING PROCEDURE
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