Operation CHARM: Car repair manuals for everyone.

Service Hints

EFI or ECD RELAY
1-3 : Closed with ignition SW at ON or ST position and fuel control SW closed

E2 ENGINE COOLANT TEMP. SENSOR
1-2 : Approx. 16.2 KOhms (-20° C, -4° F)
: Approx. 2.45 KOhms (20° C, 68° F)
: Approx. 0.32 KOhms (80° C, 176° F)

E7 (B), E9 (D), E10 (E) ENGINE CONTROL MODULE
BATT-E1 : Always 9.0-14.0 Volts
+BM-E1 : Always 9.0-14.0 Volts
IGSW-E1 : 9.0-14.0 Volts with ignition SW at ON or ST position
+B, +B1 -E1 : 9.0-14.0 Volts with ignition SW at ON or ST position
VC-E2 : 4.5-5.5 Volts with ignition SW ON
VTA2-E2 : 2.0-2.9 Volts with ignition SW ON and accelerator pedal released
: 4.6-5.1 Volts with ignition SW ON and accelerator pedal depressed
VTA-E2 : 0.4-1.0 Volts with ignition SW ON and accelerator pedal released
: 3.2-4.8 Volts with ignition SW ON and accelerator pedal depressed
VPA-E2 : 0.3-0.9 Volts with ignition SW ON and accelerator pedal released
: 3.2-4.8 Volts with ignition SW ON and accelerator pedal depressed
VPA2-E2 : 1.8-2.7 Volts with ignition SW ON and accelerator pedal released
: 4.7-5.0 Volts with ignition SW ON and accelerator pedal depressed
THA-E2 : 0.5-3.4 Volts with idling, intake air temp. 20° C (68° F)
THW-E2 : 0.2-1.0 Volts with idling, engine coolant temp. 80° C (176° F)
STA-E1 : 6.0 Volts or more with ignition SW at ST position and shift lever in P or N position
TE1-E1 : 9.0-14.0 Volts with ignition SW ON
W-E1 : 9.0-14.0 Volts with idling
: Below 3.0 Volts with ignition SW ON