P0882

DTC P0882: Malfunction of power supply system (Low)
DTC P0883: Malfunction of power supply system (high)













DIAGNOSTIC FUNCTION

TCM monitors if power supply system is normal or not and judges the trouble.

JUDGMENT CRITERIA

- [P0882] : When the engine speed is 450 r/min or more and secondary pressure is above 0.3 MPa (44 psi), the power supply voltage is 9.0 volts or less (for 5 seconds)

- [P0883]: : When the engine speed is 450 r/min or more, the secondary pressure is above 0.3 MPa (44 psi) and the vehicle speed is 1 km/h (0.6 mph) or more, the power supply voltage is 16.0 volts or more (for 5 seconds)

PROBABLE CAUSES

- Damaged wiring harness and connectors

- Malfunction of TCM

DIAGNOSTIC PROCEDURE

STEP 1. Check the following connector:

- A-15X CVT control relay connector

- C-41 TCM connector

Check each terminal for imperfect contact.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the defective connector.
STEP 2. Check for short circuit in the wiring harness between the fusible link No.36 and the TCM connector.

- Between fusible link No.36 and C-41 TCM connector (terminal No.12)

- Between fusible link No.36 and C-41 TCM connector (terminal No.25)

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the wiring harness.
STEP 3. Check for open circuit in the wiring harness between the TCM connector and the ground.

- Between C-41 TCM (terminal No.13) and ground

- Between C-41 TCM (terminal No.26) and ground

Q. Is the check result normal?

YES Go to Step 4.
NO Repair the wiring harness.
STEP 4. Retest the system.

Recheck the trouble symptom.

Q. Does the malfunction take place again?

YES Replace TCM.
NO Intermittent malfunction