Diagnostic Procedure 31 (Cont'd)
EF & EC-496flowchartSR20DE engine.
Diagnostic Procedure 31 (Cont'd) - D / continued from A
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A (continued from previous page)
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CHECK INPUT SIGNAL CIRCUIT. 1) Disconnect E.C.U. harness connector. 2) Check harness continuity between E.C.U. terminal 19 and terminal 1. Continuity should exist.
N.G.
Check the following. Harness connectors F7, M225. Harness connectors M225, F7. Harness continuity between E.C.U. and exhaust gas sensor. If N.G., repair harness or connectors.
Check the following. Harness connectors F7, M225. Harness connectors M225, F7. Harness continuity between E.C.U. and exhaust gas sensor. If N.G., repair harness or connectors.
O.K.
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Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.
O.K.
Replace exhaust gas sensor.