Component Inspection
■ Perform HO2S Heater Actuation Test
1.

Check operation of HO2S Heater

(1)

Connect GDS to Data Link Connector(DLC).

(2)

IG KEY "ON" & ENG "ON"

(3)

Perform "Actuation Test" for HO2S Heater.

Fig.1) Refer to Figure below

(4)

Has a problem been found?

▶ Go to "HO2S Heater Check" procedure.

▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM/PCM’s connector or was repaired and ECM/PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.

■ HO2S Heater Check
2.

IG Key "OFF"

3.

Disconnect HO2S(S2) connector.

4.

Measure resistance between Pin No.3 (power) terminal and Pin No.4 (control) terminal of the HO2S(S2) Heater. (component side)

Fig.1) 'Zero Set' Function

Specification : Approx. 9.0 [20℃(68℉)]

5.

Is the measured value within specification?

▶ Go to "Verification of Vehicle Repair" procedure.

▶ If no problems were found with the circuits or connectors, Replace the HO2S(S1).

Яндекс.Метрика