Diagnostic Procedure 35 (Cont'd) - PROCEDURE B
EF & EC-333flowchartPROCEDURE B diagnoses the radiator fan high-speed control circuit (radiator fan relay-2). Terminal numbers differ between L.H.D. coupe and Except L.H.D. coupe variants throughout.
PROCEDURE B
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PROCEDURE B
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INSPECTION START
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[L] CHECK POWER SUPPLY. 1) Stop engine. 2) Disconnect radiator fan relay-2. 3) Turn ignition switch "ON". 4) Check voltage between terminals (1), (3) (L.H.D. coupe), (7) (Except L.H.D. coupe) and ground. Voltage: Battery voltage
N.G.
Check the following. - Harness connectors (M11), (E106) - 10A fuse - "G" fusible link - "GY" fusible link - Harness continuity between radiator fan relay-2 and fuse - Harness continuity between radiator fan relay-2 and battery If N.G., repair harness or connectors.
Check the following. - Harness connectors (M11), (E106) - 10A fuse - "G" fusible link - "GY" fusible link - Harness continuity between radiator fan relay-2 and fuse - Harness continuity between radiator fan relay-2 and battery If N.G., repair harness or connectors.
O.K.
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CHECK GROUND CIRCUIT. 1) Turn ignition switch "OFF". 2) Disconnect radiator fan motor-1 harness connector and radiator fan motor-2 harness connector. [M] 3) Check harness continuity between terminal (b) and terminal (5) (L.H.D. coupe), (6) (Except L.H.D. coupe). Continuity should exist. [N] 4) Check harness continuity between terminal (c) and terminal (6) (L.H.D. coupe), (3) (Except L.H.D. coupe), terminal (7) (L.H.D. coupe), (5) (Except L.H.D. coupe) and body ground. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
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A (continues to EF & EC-334)