Description
This malfunction is detected when the A/T does not shift into reverse position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc
DTC Logic
DTC DETECTION LOGIC
| DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
| P073E | Unable to Engage Reverse | Under the following diagnosis
conditions, the gear ratio is
2.449 or more continuously for
2 seconds or more. - Diagnosis condition - Shifting is not in progress. - Input speed: 300 rpm or more - Output speed: 300 rpm or more - Engine speed: (Input speed - 50 rpm) or more - Selector lever: R position - Throttle position: 0.7/8.0 or more |
- High clutch/low & reverse
brake solenoid valve - Control valve assembly |
DTC CONFIRMATION PROCEDURE
CAUTION:
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT
Selector lever : R position
Throttle position : 0.7/8 or more
Vehicle speed : 5 km/h (8 MPH) or more
3. Keep the current driving status for 2 seconds or more if CONSULT screen changes from "OUT OFCONDITION" to "TESTING".
CAUTION: When "TESTING" is not indicated on CONSULT for a long time, check "Self Diagnostic Results" in "TRANSMISSION". When a DTC other than "P073E" is detected, check the DTC. Refer to TM, "DTC Index".
With GST
Selector lever : R position
Throttle position : 0.7/8 or more
Vehicle speed : 5 km/h (8 MPH) or more
3. Check the first trip DTC.
Is "OUT OF CONDITION", "STOP VEHICLE" or "COMPLETED RESULT NG" displayed? / Is "P073E" detected?
YES-1 (OUT OF CONDITION.)>>Perform "step 2" again.
YES-2 (STOP VEHICLE.)>>INSPECTION END
YES-3 (COMPLETED RESULT NG)>>Go to TM, "Diagnosis Procedure".
YES-4 ("P073E" is detected.)>>Go to TM, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.MALFUNCTION CAUSE SIMULATION TEST
Refer to GI, "Intermittent Incident".
Is the check result normal?
YES >> Replace the transaxle assembly. Refer to TM, "Removal and Installation".
NO >> Repair or replace the malfunctioning parts.
P0734 4GR Incorrect ratioDescription This malfunction is detected when the A/T does not shift into 4GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by ...

Description This malfunction is detected when the A/T does not shift into 1GR position as instructed by TCM. This is not only caused by electrical malfunction (circuits open or shorted) but by ...
Line pressure control
Line pressure control : system diagram
Line pressure control : system description
When an engine and A/T integrated control signal (engine torque)
equivalent to the engine drive force is
transmitted from the ECM to the TCM, the TCM controls the line pressure
solenoid valve.
Th ...
Combination switch output circuit
Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS "Wiring Diagram".
1.CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check continuity between BCM connector and combination switch connector.
...