TROUBLE DIAGNOSES — Diagnostic Procedure 26 (Cont'd)
EF & EC-141flowchartDiagnostic Procedure 26 (Cont'd)
Diagnostic Procedure 26 (ignition signal)
1
INSPECTION START
2
A — CHECK POWER SUPPLY. 1) Disconnect ignition coil harness connector. 2) Turn ignition switch "ON". 3) Check voltage between ignition coil terminal (a) and ground. Voltage: Battery voltage
N.G.
Check the following. • Harness connectors (F21), (M17) • Harness continuity between ignition coil and ignition switch. If N.G., repair harness or connectors.
O.K.
3
B — CHECK GROUND CIRCUIT. 1) Turn ignition switch "OFF". 2) Disconnect resistor harness connector. 3) Disconnect power transistor harness connector. 4) Check harness continuity between ignition coil terminal (b) and resistor terminal (c). Continuity should exist. 5) Check harness continuity between crank angle sensor terminal (f) and engine ground. Continuity should exist.
N.G.
Repair harness or connector.
O.K.
4
C — CHECK INPUT SIGNAL CIRCUIT. 1) Disconnect E.C.U. harness connector. 2) Check harness continuity between terminal resistor (d) and E.C.U. terminal 3. Continuity should exist.
N.G.
same as step 3
O.K.
5
D — CHECK OUTPUT SIGNAL CIRCUIT. 1) Check harness continuity between crank angle sensor terminal (e) and E.C.U. terminal 1. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
6
A (continues on next page)