6E1-38
ENGINE AND EMISSION CONTROL SYSTEM
B-6 ENGINE START SIGNAL CHECK
1. ECM
2. ECM coupler
3. Main switch
4. To starting motor
STEP
ACTION
YES
NO
1
1) With ignition switch OFF, disconnect couplers from ECM.
2) Is 6 – 12 V voltage applied to E34-13 terminal of coupler
only when cranking engine.
Engine starter
signal circuit is
in good condition.
“B/Y” wire open or
Poor “E34-13”
connection
Fig. for STEP 1
1. ECM coupler disconnected
2. Body ground