E.C.C. Trouble Diagnoses (Models with catalyzer without E.G.R.) - Diagnostic Procedure 1 - Main Power Supply and Ground Circuit
EF & EC-50wiring diagramApplies to GA13DS, GA14DS & GA16DS engines with catalyzer, without E.G.R. (L) = L.H.D. models, (R) = R.H.D. models distinction shown for ignition switch routing.
Diagnostic Procedure 1
MAIN POWER SUPPLY AND GROUND CIRCUIT (Not self-diagnostic item)
Main Power Supply and Ground Circuit
Components (8)
E.C.U.E.C.C. RELAYIGNITION SWITCH (ON or START)S.M.J. (Super Multiple Junction) - Refer to last page (Foldout page)FUSE BLOCK - Refer to POWER SUPPLY ROUTING in EL sectionBODY GROUNDBATTERYFUSIBLE LINK & FUSE BOX
Connections (3)
E.C.C. RELAY
E.C.C. RELAYS.M.J. (Super Multiple Junction) - Refer to last page (Foldout page):C4White with Green stripe
S.M.J. (Super Multiple Junction) - Refer to last page (Foldout page)
S.M.J. (Super Multiple Junction) - Refer to last page (Foldout page):C4FUSE BLOCK - Refer to POWER SUPPLY ROUTING in EL sectionWhite with Green stripe
BATTERY
BATTERYFUSIBLE LINK & FUSE BOXWhite
NOTE
S.M.J. (Super Multiple Junction): Refer to last page (Foldout page). Connector C4 joins the engine room harness (W/G) and the main harness (W/G).
FUSE BLOCK: Refer to "POWER SUPPLY ROUTING" in EL section.
E.C.U. test point references: A-B, E-B, H-OR. Connector groupings near E.C.U.: C D E and A B C F.
Legend: (L) = L.H.D. models; (R) = R.H.D. models.