Diagnostic Procedure 23 (Cont'd) - Crank Angle Sensor
EF & EC-469flowchartApplies to SR20DE. CONSULT DATA MONITOR or manual continuity check are alternatives for input signal circuit.
Crank Angle Sensor (Code No. 11) Inspection
1
INSPECTION START
2
CHECK POWER SUPPLY. 1) Disconnect crank angle sensor harness connector. 2) Turn ignition switch "ON". 3) Check voltage between terminal (a) and ground. Voltage: Battery voltage
N.G.
Check the following. - Harness continuity between crank angle sensor and E.C.C.S. relay. If N.G., repair harness or connectors.
O.K.
3
CHECK GROUND CIRCUIT. 1) Turn ignition switch "OFF". 2) Check harness continuity between terminal (b) and engine ground. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
4
CHECK INPUT SIGNAL CIRCUIT. 1) Reconnect crank angle sensor harness connector. 2) Start engine. 3) Read crank angle sensor signals in "DATA MONITOR" mode with CONSULT. rpm: 850 ± 50 OR 1) Disconnect E.C.U. harness connector. 2) Check harness continuity between terminal (c) and E.C.U. terminals 37, 49 (1° signal), terminal (d) and E.C.U. terminals 22, 30 (180° signal). Continuity should exist.
N.G.
same as step 3
O.K.
5
CHECK COMPONENT (Crank angle sensor). Refer to "Electrical Components Inspection". (See page EF & EC-629.)
N.G.
Replace crank angle sensor.
O.K.
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.