DTC Diagnosis Procedure

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

CHECK DTC PRIORITY
- DTC P2080 is displayed with DTCs related to following items, first perform the trouble diagnosis of DTCs.
  - Crankshaft position sensor
  - Misfire
  - Fuel system
  - A/F sensor 1
  - A/F sensor 1 heater
  - Mass air flow sensor
  - Engine coolant temperature sensor 1
  - Intake air temperature sensor
  - Vehicle speed sensor
- DTC P2080 is displayed with DTC P0544, P0545, P0546, or P2081, first perform the trouble diagnosis for DTC P0544, P0545, P0546, or P2081.
Is applicable DTC detected?

YES

Perform diagnosis of applicable. Refer to DTC Index .

NO

GO TO 2.
CHECK FOR EXHAUST GAS LEAKS
1. Start the engine and let it idle.
2. Listen for an exhaust gas leak upstream the three way catalyst.
Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace error-detected parts.

CHECK EXHAUST GAS TEMPERATURE SENSOR

With CONSULT

Start engine and warm it up to normal operating temperature.
Select "EXHAUST GAS TEMP SEN 1 B1" in "DATA MONITOR" mode of "ENGINE" using CONSULT.

Check that "EXHAUST GAS TEMP SEN 1 B1" indication as follows.

Monitor item	Condition	Value
EXHAUST GAS TEMP SEN 1 B1	Warm-up condition Idle speed	1.05 - 4.00 V

Without CONSULT

Start engine and warm it up to normal operating temperature.

Check that voltage between ECM harness connector terminals as follows.

ECM			Condition	Voltage
Connector	+	-
	Terminal
F78	19	43	Warm-up condition Idle speed	1.05 - 4.00 V

Is the inspection result normal?

YES

INSPECTION END

NO

Replace exhaust gas temperature sensor. Refer to Exploded View .