2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 584
When "TESTING" is not indicated on CONSULT-III for a long time, check "Self Diagnostic Results" in "TRANSMISSION". When a
DTC other than "P0733" is detected, check the DTC. See: Diagnostic Trouble Code Descriptions/DTC Index/TCM.
With GST
1. Drive vehicle and maintain the following conditions for 2 seconds or more.
Selector lever : "M" position
Gear position : 3rd
Accelerator pedal opening : 0.7/8 or more
Vehicle speed : 10 km/h (7 MPH) or more
2. Check DTC.
Is "OUT OF CONDITION", "STOP VEHICLE" or "COMPLETED RESULT NG" displayed? / Is "P0733" detected?
YES-1 - "OUT OF CONDITION": Perform "Step 3" again.
YES-2 - "STOP VEHICLE": GO TO 4.
YES-3 - "COMPLETED RESULT NG": Go to See: P Code Charts/P0733/7AT RE7R01A.
YES-4 - "P0733" is detected: Go to See: P Code Charts/P0733/7AT RE7R01A.
NO - Check intermittent incident. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis
For an Electrical Incident.
4.CHECK SYMPTOM (PART 2)
With CONSULT-III
1. Stop vehicle.
2. Drive vehicle in "D" position allowing it to shift from 1GR to 7GR and check shift timing and shift shock.
- INSPECTION END
Diagnosis Procedure
1.CHECK INTERMITTENT INCIDENT
See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis For an Electrical Incident.
Is the inspection result normal?
YES - Replace A/T assembly. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Removal and
Replacement/7AT RE7R01A/Transmission Assembly/Exploded View.
NO - Repair or replace damaged parts.
5AT RE5R05A
P0734 4GR INCORRECT RATIO
Description
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 mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.
On Board Diagnosis Logic
- This is an OBD-II self-diagnostic item.
- Diagnostic trouble code "P0734" with CONSULT-III or 21st judgment flicker without CONSULT-III is detected when TCM detects any
inconsistency in the actual gear ratio.
Possible Cause
- Input clutch solenoid valve
- Front brake solenoid valve
- Direct clutch solenoid valve
- High and low reverse clutch solenoid valve
- Each clutch and brake
- Hydraulic control circuit
DTC Confirmation Procedure
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If "DTC Confirmation Procedure" has been previously performed, always turn ignition switch OFF and wait at least 10 seconds before
performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start the engine and select "DATA MONITOR" in "TRANSMISSION".
2. Make sure that "ATF TEMP 1" is within the following range.
ATF TEMP 1: 20锟斤拷C (68锟斤拷F) - 140锟斤拷C (284锟斤拷F)
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select "4TH GR FNCTN P0734" in "DTC & SRT CONFIRMATION" in "TRANSMISSION".
