Circuit Service Hints
EFI RELAY2-5-2-3: Closed with Ignition SW at ON or ST position
C 6 CIRCUIT OPENING RELAY
1-2: Closed with Starter Running
I 6, I 7, I 8, I 9, I10, I11 INJECTOR
1-2: 13.4-14.2 Ohms
P 1 PARK/NEUTRAL POSITION SW
5-6: Closed with A/T Shift Lever in P or N position
T 1 THROTTLE POSITION SENSOR
3-1: 0.2-0.8 K Ohms with clearance between lever and stop screw 0 mm (0 in.)
2-1: 2.3 K Ohms or less with clearance between lever and stop screw 0.50 mm (0.0197 in.)
Infinity with clearance between lever and stop screw 0.77 mm (0.0303 in.)
3-1: 3.3-10 K Ohms with Throttle valve fully open
4-1: 4-9 K Ohms
E 3 ENGINE COOLANT TEMP. SENSOR
1-2: 10-20 K Ohms (-20°C, -4°F)
4-7 K Ohms (0°C, 32°F)
2-3 K Ohms (20°C, 68°F)
0.9-1.3 K Ohms (40°C, 104°F)
0.4-0.7 K Ohms (60°C, 140°F)
0.2-0.4 K Ohms (80°C, 176°F)
E 5-A, E, E 6-B, F, E 7-C, G, E 8-D, H ENGINE CONTROL MODULE
Voltage at Engine control Module wiring connectors
+B-E1: 9-14 Volts (Ignition SW ON)
BATT-E1: 9-14 Volts (Always)
VCC-E2: 4.5-5.5 Volts (Ignition SW ON)
IDL-E2: 9-14 Volts (Ignition SW ON and Throttle Valve Open)
VTA-E2: 0.3-0.8 Volts (Ignition SW ON and Throttle Valve Fully Closed)
3.2-4.9 Volts (Ignition SW ON and Throttle Valve Fully Open)
IGT1, IGT2, IGT3-E1: Pulse Generation (Cranking or Idling)
STA-E1: 6 Volts or more (Ignition SW at ST position)
#10, #20, #30, #40, #50, #60-E1: 9-14 Volts (Ignition SW ON)
W-E1: 9-14 Volts (No Trouble And Engine Running)
THA-E2: 0.5-3.4 Volts (Ignition SW ON and Intake Air Temp. 20°C, 68°F)
THW-E2: 0.2-1.0 Volts (Ignition SW ON And Coolant Temp. 80°C, 176°F)
SP1-E1: Pulse Generation with Vehicle Moving
BK-E1: 7.5-14 Volts (Stop Light SW ON)
RESISTANCE AT ECU WIRING CONNECTOR
(Disconnect Wiring Connector)
IDL-E2: Infinity (Throttle Valve Open)
0-100 Ohms (Throttle Valve Fully Closed)
VTA-E2: 3.3-10 K Ohms (Throttle Valve Fully Open)
0.2-0.8 K Ohms (Throttle Valve Fully Closed)
THA-E2: 2-3 K Ohms (Intake Air Temp. 20°C, 68°F)
THW-E2: 0.2-0.4 K Ohms (Coolant Temp. 80°C, 178°F)
+B-E2: 0.2-0.4 K Ohms
NE-E1: 140-180 Ohms