Diagnostic Test
- PERFORM COMPONENT FUNCTION CHECK-I
Without CONSULT
- 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.
- Start 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 Terminal P0138 F14 41
[HO2S2 (bank 1) signal]35
(Sensor ground)Revving up to 4, 000 RPM under no load at least 10 times The voltage should be below 0.27 V at least once during this procedure. P0158 32
[HO2S2 (bank 2) signal]
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO STEP 2.
- PERFORM COMPONENT FUNCTION CHECK-II
Check the voltage between ECM harness connector terminals under the following conditions.
DTC ECM Condition Voltage Connector + - Terminal Terminal P0138 F14 41
[HO2S2 (bank 1) signal]35
(Sensor ground)Keeping engine speed at idle for 10 minutes The voltage should be below 0.27 V at least once during this procedure. P0158 32
[HO2S2 (bank 2) signal]Is the inspection result normal?
YES
INSPECTION END
NO
GO TO STEP 3.
- PERFORM COMPONENT FUNCTION CHECK-III
Check the voltage between ECM harness connector terminals under the following conditions.
DTC ECM Condition Voltage Connector + - Terminal Terminal P0138 F14 41
[HO2S2 (bank 1) signal]35
(Sensor ground)Coasting from 80 km/h (50 MPH) with selector lever in the D position The voltage should be below 0.27 V at least once during this procedure. P0158 32
[HO2S2 (bank 2) signal]Is the inspection result normal?
YES
INSPECTION END
NO
Proceed to DIAGNOSIS PROCEDURE .