P0871

DTC P0871

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- If other DTC than P0871 is newly detected during this "DTC Confirmation Procedure", troubleshoot the newly detected DTC in first.
- Confirm that the following conditions are met in this procedure.


- Battery voltage > 10.5 V

- 0.5 < Gear ratio < 1.0


1) Drive vehicle at 30 - 50 km/h (19 mile/h - 31 mile/h) constantly for 40 sec. or more at "D" range. (Keep throttle valve opening constantly in this step).
2) Stop vehicle.
3) Push engine switch to change ignition mode to "OFF" and leave ignition mode in "OFF" for 10 sec.
4) Push engine switch to change ignition mode to "ON".
5) Repeat Step 1) through 2) twice.

DTC Troubleshooting

1.
Was "CVT System Check" performed?
YES -
Go to Step 2.
NO -
Go to CVT System Check CVT System Check.

2. Primary pressure sensor and its circuit check

Check primary pressure sensor and its circuit according to Step 2 through 3 of P0842 DTC P0842 / P0843.

Are they in good condition?
YES -
Go to Step 3.
NO -
Repair or replace defective parts.

3. Secondary pressure sensor and its circuit check

Check secondary pressure sensor and its circuit according to Step 2 through 3 of P0847 DTC P0847 / P0848.

Are they in good condition?
YES -
Go to Step 4.
NO -
Repair or replace defective parts.

4. Stall test

Perform stall test. Stall Test

Is it in good condition?
YES -
Substitute a known-good TCM and recheck DTC. Service and Repair
NO -
Replace primary pressure sensor / secondary pressure sensor (valve body assembly). Service and Repair