Confirmation Procedure

If DTC P0053 is displayed with DTC P0103 P0032 or P0130, first perform the confirmation procedure (trouble diagnosis) for DTC P0103 P0032 or P0130.

Is applicable DTC detected?

YES

Perform diagnosis of applicable.

• P0031: Refer to DTC Description .
• P0032: Refer to DTC Description .
• P0130: Refer to DTC Description .

NO

GO TO 2.

When DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

TEST CONDITION:

Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at idle.

GO TO 3.

1. Start the engine and warm it up until the engine coolant temperature reaches 25 deg.C (77 deg.F) or more.
2. Keep the engine at idle at least 35 seconds.
3. Check 1st trip DTC.

Is DTC P0053 detected?

YES

Refer to DTC Diagnosis Procedure .

NO

To check malfunction symptom before repair: Refer to Inspection .

NO

Confirmation after repair: INSPECTION END