P0847

DTC P0847 / P0848

DTC Detecting Condition and Trouble Area






Wiring Diagram

Refer to P0641 DTC P0641.

DTC Confirmation Procedure

P0847 / P0848

NOTE:

- If DTC other than aimed DTC are previously detected in DTC confirmation procedure, be sure to troubleshoot DTC previously detected.
- Check that the following conditions are satisfied when using this procedure.

- Battery voltage > 10.5 V
- CVT fluid temperature at engine start ≥ -20 °C (-4 °F)

1) Turn ignition switch to ON position for 10 sec.

DTC Troubleshooting

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

2. Sensor power supply check

Turn off ignition switch and disconnect solenoid connector.
Check for proper terminal connection to solenoid connector.
If connections are OK, turn ignition switch to ON position.
Check that voltage between sensor power supply circuit (B1) and vehicle body ground is 5 V.

Is it in good condition?
YES -
Go to Step 3.
NO -
Repair or replace defective wire harness.

3. Secondary pressure sensor signal circuit and ground circuit check

Turn off ignition switch and disconnect connectors from solenoid connector and TCM.
Check for proper terminal connection to solenoid connector and TCM connectors.
If connections are OK, check that secondary pressure sensor circuit (A2) and sensor ground circuit (B2) are as follows.
- Wiring harness resistance of secondary pressure sensor signal circuit and ground circuit is less than 1 ohms.
- Insulation resistance of secondary pressure sensor signal circuit is infinity between solenoid connector and vehicle body ground.
- Insulation resistance of wire harness is infinity between secondary pressure sensor signal circuit terminal and each terminal at solenoid connector.
- Circuit voltage of secondary pressure sensor signal circuit and sensor ground circuit is 0 - 1 V with ignition switch in ON position.

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

4. Secondary pressure sensor check

Connect solenoid connector and TCM connectors.
Check voltage between connector terminal "C10-15" and vehicle body ground. Inspection of TCM and Its Circuits

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