Operation CHARM: Car repair manuals for everyone.

Service Hints

EFI RELAY [ENGINE ROOM J/B]
5-3 : Closed with ignition SW at ON or ST position

E6 ENGINE COOLANT TEMP. SENSOR
1-2 : Approx. 15.0 Kilo Ohms (-20° C, -4° F)
Approx. 2.45 Kilo Ohms (20° C, 68° F)
Approx. 0.32 Kilo Ohms (80° C, 176° F)
Approx. 0.14 Kilo Ohms (110° C, 230° F)

E11 (A), E13(C), E14 (D), E15 (E) ENGINE CONTROL MODULE
Voltage at engine control module wiring connector
BATT-GROUND : Always approx. 12 Volts
+BM-GROUND : Always approx. 12 Volts
VC-GROUND : 4.5-5.5 Volts with ignition SW ON
VTA2-GROUND : 2.0-2.9 Volts with ignition SW ON and throttle valve fully closed
4.7-5.1 Volts with ignition SW ON and throttle valve fully open
VTA-GROUND : 0.4-1.0 Volts with ignition SW ON and throttle valve fully closed
3.2-4.8 Volts with ignition SW ON and throttle valve fully open
VPA-GROUND : 0.25-0.9 Volts with ignition SW at ON and accelerator fully closed
3.2-4.8 Volts with ignition SW at ON and accelerator fully opened
VPA2-GROUND : 1.8-2.7 Volts with ignition SW at ON and accelerator fully closed
4.7-5.0 Volts with ignition SW at ON and accelerator fully opened
THA-GROUND : 0.5-3.4 Volts with idling, intake air temp. 20° C (68° F)
THW-GROUND : 0.2-1.0 Volts with idling, water temp. 80° C (176° F)
STA-GROUND : 8.0 Volts or more with cranking
TC-GROUND : 9.0-14.0 Volts with ignition SW ON
W-GROUND : 9.0-14.0 Volts with idling
0-3.0 Volts with ignition SW ON
ACMG-GROUND : 0-1.5 Volts with A/C SW ON (at idling)
7.5-14.0 Volts with A/C SW OFF and throttle valve fully open
#1, #2. #3, #4, #5, #6, #7 #8-GROUND : 9.0-14.0 Volts with ignition SW ON pulse generation with idling

I6, I7, I8, I9, I10, I11, I12, I13 INJECTOR NO. 1, NO.2, NO.3, NO.4, NO.5, NO.6, NO.7, NO. 8
1-2: 13.4-14.2 Ohms