P1702

P1702-PRIMARY OIL PRESSURE SENSOR / SECONDARY OIL PRESSURE SENSOR CORRELATION

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Transmission Control Module (TCM) monitors the correlation between the primary and secondary pressure sensors. If the correlation between the sensors is out of range a DTC will set.

- When Monitored:
Ignition on, system voltage between 9.0 and 16.0 volts.

Engine running with the transmission in Drive.

Vehicle speed greater than 10.0 Km/h (6.0 mph).

Accelerator Pedal Position (APP) greater than 12.5%.

Engine rpm greater than 450 rpm.

No active DTCs from the following:

- Primary or Secondary Pressure Sensor
- Transmission Temperature Sensor
- TCC Lock Up Solenoid
- Step Motor
- Input or Output Speed Sensor
- Transmission Range Sensor (TRS)
- Line Pressure Solenoid
- Secondary Pressure Solenoid
- Set Condition:
Condition one:

Reported primary pressure is less than the lower limit of the primary pressure correlated with the reported secondary pressure for more than five seconds.

Condition two:

Reported primary pressure is greater than the upper limit of the primary pressure correlated with the reported secondary pressure for more than five seconds.





Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Initial Inspection and Diagnostic Overview.

1. CHECK FOR TRANSMISSION DTC(s)
1. With the scan tool, read Transmission DTCs.

Are any of the following DTC(s) present P0842, P0843, P0847, or P0848?

Yes

- Testing and Inspection Perform the appropriate diagnostic procedure.

No

- Go To 2

2. CHECK TO SEE IF THE DTC IS ACTIVE
1. With the scan tool, read Transmission DTCs.

Is the status Active or is the Starts Since Set counter 2 or less for this DTC?

Yes

- Go To 3

No

- Go To 4

3. CHECK THE TCM
1. Replace the Valve Body.
2. Perform the CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test.

Did the DTC reset during the verification test?

Yes

- Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for any Service Bulletins for possible causes that may apply. If no problems are found, replace the TCM.
- Perform the CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test.

No

- Test Complete.

4. CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle the wires while checking for shorted and open circuits.

Were there any problems found?

Yes

- Repair as necessary.
- Perform the CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test.

No

- Test Complete.