Diagnostic Procedure 27 (Cont'd) - IGNITION SIGNAL (Code No. 21)
EF & EC-305flowchartHarness connector checks differ by drive side: (F34)/(E16) and (M11)/(E104) for L.H.D. models; (F6)/(E15) for R.H.D. models. Flow continues to next page via off-page connector A.
Ignition Signal (Code No. 21) diagnostic flow
1
INSPECTION START
2
CHECK POWER SUPPLY. 1) Disconnect ignition coil harness connector. 2) Turn ignition switch "ON". 3) Check voltage between terminal (d) and ground. Voltage: Battery voltage
N.G.
Check the following. - Harness connectors (F34), (E16) (L.H.D. models) - Harness connectors (M11), (E104) (L.H.D. models) - Harness connectors (F6), (E15) (R.H.D. models) - Harness continuity between ignition coil and ignition switch. If N.G., repair harness or connectors.
Check the following. - Harness connectors (F34), (E16) (L.H.D. models) - Harness connectors (M11), (E104) (L.H.D. models) - Harness connectors (F6), (E15) (R.H.D. models) - Harness continuity between ignition coil and ignition switch. If N.G., repair harness or connectors.
O.K.
3
CHECK GROUND CIRCUIT. 1) Turn ignition switch "OFF". 2) Disconnect resistor and condenser harness connector. 3) Disconnect power transistor harness connector. 4) Check harness continuity between terminal (b) and terminal (c), (i). Continuity should exist. 5) Check harness continuity between terminal (h) and engine ground. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
4
CHECK INPUT SIGNAL CIRCUIT. 1) Disconnect E.C.U. harness connector. 2) Check harness continuity between terminal (d) and E.C.U. terminal 3. Continuity should exist.
N.G.
same as step 3
O.K.
5
CHECK OUTPUT SIGNAL CIRCUIT. 1) Check harness continuity between terminal (g) and E.C.U. terminal 1. Continuity should exist.
N.G.
same as step 3
O.K.
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(A) Continued on next page (EF & EC-306).