DTC Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.

PRECONDITIONING
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.
Will CONSULT be used?

YES

GO TO 2.

NO

GO TO 4.
PERFORM DTC CONFIRMATION PROCEDURE
WITH CONSULT

TESTING CONDITION:

For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30 deg.C (32 to 86 deg.F).
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Restart engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
6. Let engine idle for 1 minute.
7. Select "DATA MONITOR" mode with CONSULT.
8. Check that "COOLAN TEMP/S" indicates more than 70 deg.C (158 deg.F).
  If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches 70 deg.C (158 deg.F).
9. Open engine hood.
10. Select "HO2S2 (B1) P1147" (for DTC P0137) or "HO2S2 (B2) P1167" (for DTC P0157) of "HO2S2" in "DTC WORK SUPPORT" mode with CONSULT.
11. Follow the instruction of CONSULT display.
  NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
12. Touch "SELF-DIAG RESULTS".
Is "OK" displayed on CONSULT screen?

YES

To check malfunction symptom before repair: Refer to Intermittent Incident .

YES

Confirmation after repair: INSPECTION END

NO

"NG" is displayed: Proceed to Diagnosis Procedure .

NO

"CAN NOT BE DIAGNOSED" is displayed: GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
2. Perform DTC confirmation procedure again.
GO TO 2.

PERFORM COMPONENT FUNCTION CHECK-I

NOTE: Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.

WITH GST

Start engine and warm it up to the normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds.
Restart engine and keep the engine speed between 3, 500 and 4, 000 rpm for at least 1 minute under no load.
Let engine idle for 1 minute.

Check the voltage between ECM harness connector terminals under the following conditions.

DTC	ECM				Condition	Voltage
	+		-
	Connector	Terminal	Connector	Terminal
P0137	F79	84	F78	43	Revving up to 4, 000 rpm under no load at least 10 times	The voltage should be above 0.73 V at least once during this procedure.
P0157		77

Is the inspection result normal?

YES

To check malfunction symptom before repair: Refer to Intermittent Incident .

YES

Confirmation after repair: INSPECTION END

GO TO 5.

PERFORM COMPONENT FUNCTION CHECK-II

Check the voltage between ECM harness connector terminals under the following conditions.

DTC	ECM				Condition	Voltage
	+		-
	Connector	Terminal	Connector	Terminal
P0137	F79	84	F78	43	Keeping engine at idle for 10 minutes	The voltage should be above 0.73 V at least once during this procedure.
P0157		77

Is the inspection result normal?

YES

To check malfunction symptom before repair: Refer to Intermittent Incident .

YES

Confirmation after repair: INSPECTION END

GO TO 6.

PERFORM COMPONENT FUNCTION CHECK-III

Check the voltage between ECM harness connector terminals under the following conditions.

DTC	ECM				Condition	Voltage
	+		-
	Connector	Terminal	Connector	Terminal
P0137	F79	84	F78	43	Coasting from 80 km/h (50 MPH) with selector lever in the D position	The voltage should be above 0.73 V at least once during this procedure.
P0157		77

Is the inspection result normal?

YES

To check malfunction symptom before repair: Refer to Intermittent Incident .

YES

Confirmation after repair: INSPECTION END

Proceed to Diagnosis Procedure .