|
|
SEF055TA SEF377U SEC032C SEF398UA SEF135T DIAGNOSTIC PROCEDURE INSPECTION START 1. Turn ignition switch “OFF”. CHECK INPUT SIGNAL CIRCUIT. harness connector and ECM harness connec- 2. Check harness continuity between ECM and sensor terminals. Continuity should exist. 3. Check harness continuity between ECM sen- sor or ground terminals. Continuity should not exist. If OK, check harness for short to ground and OK E NG Check the following. I Harness connectors F3 , E12 (B1) or F14 , F131 (B2) I Harness connectors E19 , E102 (B1) If NG, repair open circuit or CHECK GROUND CIRCUIT. q 3 and engine ground. OK E NG Check the following. I Harness connectors F3 , E12 (B1) or F14 , F131 (B2) I Harness connectors E19 , E102 (B1) I Harness connectors F62 , F61 I Harness for open or short If NG, repair open circuit or CHECK COMPONENT 2. Disconnect sensor harness connector and check for water. 3. Check heated oxygen sensor 2 (rear). OK E NG Repair or replace harness Perform “TROUBLE DIAGNOSIS FOR INTER- OK INSPECTION END DTC Terminals Bank (Harness protector color) ECM Sensor P0140 90 2 (B1) (White) P0160 89 2 (B2) (Red) DTC Terminals Bank (Harness protector color) ECM or sensor Ground P0140 90 or 2 Ground (B1) (White) P0160 89 or 2 Ground (B2) (Red) GI MA EM LC FE AT PD FA RA BR ST RS BT HA EL IDX TROUBLE DIAGNOSIS FOR DTC P0140 (B1), P0160 (B2) Heated Oxygen Sensor 2 (Rear) (P0140: Bank H H H H H H EC-237 |