DTC Confirmation Procedure

NOTE: Never refuel before and during the following procedure.

CHECK DTC PRIORITY
If DTC P0128 is displayed with other DTC, first perform the trouble diagnosis for other DTC.

Is applicable DTC detected?

YES >>: Perform diagnosis of applicable. Refer to DTC INDEX .

NO >>: GO TO 2
PRECONDITIONING-1
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure 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.
>>: GO TO 3

PRECONDITIONING-2

With M.U.T.-III SE

Turn ignition switch ON.

Check the following conditions:

Ambient temperature	-10°C (14°F) or more
A/C switch	OFF
Blower fan switch	OFF

Select "DATA MONITOR" mode of "ENGINE" using M.U.T.-III SE.
Check the following conditions:

COOLANT TEMP/S -10°C - 58°C (14 - 136°F)

Is the condition satisfied?

YES >>: GO TO 4

NO >>
1. Satisfy the condition.
2. GO TO 4

PERFORM DTC CONFIRMATION PROCEDURE-1

With M.U.T.-III SE

Start engine.

Drive the vehicle until the following condition is satisfied.

CAUTION: Always drive vehicle at safe speed.

STEP 1

Drive the vehicle under the conditions instructed below until the difference between "COOLANT TEMP/S" and "FUEL T/TMP SE" becomes at least 26°C (47°F).

COOLANT TEMP/S

66°C (151°F) or less

FUEL T/TMP SE

Less than the value calculated by subtracting 26°C (47°F) from "COOLANT TEMP/S".⁽¹⁾

⁽¹⁾

Example

COOLANT TEMP/S	FUEL T/TMP SE
70°C (158°F)	44°C (111°F) or less
65°C (149°F)	39°C (102°F) or less
60°C (140°F)	34°C (93°F) or less

STEP 2
Drive the vehicle at 50 km/h (32 MPH) or more with the difference between "COOLANT TEMP/S" and "FUEL T/TMP SE" maintained at 26°C (47°F) or more.

NOTE: Keep the accelerator pedal as steady as possible during cruising.
STEP 3
Drive the vehicle at 50 km/h (32 MPH) or more until "COOLANT TEMP/S" increases by 6°C (11°F).

NOTE: Keep the accelerator pedal as steady as possible during cruising.

Is the condition satisfied?

YES >>: GO TO 5

NO >>: GO TO 2

PERFORM DTC CONFIRMATION PROCEDURE-2
With M.U.T.-III SE
1. Drive the vehicle until the following condition is satisfied.
  
  COOLANT TEMP/S 67°C (153°F) or more
  
  CAUTION: Always drive vehicle at safe speed.
2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES >>: Proceed to DTC DIAGNOSIS PROCEDURE .

NO-1 >>: To check malfunction symptom before repair: Refer to INTERMITTENT INCIDENT .

NO-2 >>: Confirmation after repair: INSPECTION END