Service Hints

EFI MAIN RELAY (In R/B No.2)
3 - 5: Closed with Ignition Switch at ON position

EFI NO.2 RELAY (In R/B No.2)
3 - 5: Closed with Ignition Switch at ON position

E3 ENGINE COOLANT TEMP. SENSOR (EFI WATER 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)

I1 IDLE AIR CONTROL VALVE (ISC VALVE)
1,3 - 2: 10 - 30 Ohms Approx.
4,6 - 5: 10 - 30 Ohms Approx.

I12, I13, I14, I15, I16, I17 INJECTOR
1 - 2: 13.8 Ohms Approx.

T2 THROTTLE POSITION SENSOR
1 - 4: 4 - 9 K Ohms Approx.
1 - 3: - 3.3 - 10.0 K Ohms with Throttle Valve Fully Opened position
- 0.2 - 0.8 K Ohms with clearance between lever and stop screw 0 mm (0 in.)

1 - 2: - 0 - 2.3 K Ohms with clearance between lever and stop screw 0.45 mm (0.0177 in.)
- Infinity with clearance between lever and stop screw 0.55 mm (0.0216 in.)

E9 (B), E10 (A) ENGINE CONTROL MODULE (connectors)

VOLTAGE AT ENGINE CONTROL MODULE WIRING CONNECTORS
Batt - E1: 9 - 14 Volts Always
IGSW - E1: 9 - 14 Volts with Ignition Switch ON
M - REL - E1: 9 - 14 Volts with Ignition Switch ON
+B - E1: 9 - 14 Volts with Ignition Switch ON
IDL1 - E2: 9 - 14 Volts with Ignition Switch ON and Throttle valve fully open
0 - 1.5 Volts with Ignition Switch ON and Throttle valve fully closed

VTA1 - E2: 0.3 - 0.8 Volts with Ignition Switch ON and Throttle valve fully closed
3.2 - 4.9 Volts with Ignition Switch ON and Throttle valve open

THA - E2: 0.5 - 3.4 Volts with Ignition Switch ON and Intake Air Temp. 20°C (68°F)
THW - E2: 0.2 - 1.0 Volts with Ignition Switch ON and Coolant Temp. 80°C (176°F)
STA - E1: 6 - 14 Volts with Engine Cranking
W - E1: 9 - 14 Volts with Engine Idling
IGF - E1: Pulse Generation (Engine Idling)
NSW - E1: 0 - 3 Volts with Ignition Switch ON and Shift lever P or N position
9 - 14 Volts with Ignition Switch ON and Shift Lever except P or N position

SP1: Pulse Generation
TE1, TE2 - E1: 9 - 14 Volts with Ignition Switch ON
A/C - E1: 0 - 1.5 Volts with Ignition Switch ON and A/C OFF
7.5 - 14 Volts with Ignition Switch ON and A/C ON

ELS - E1: 9 - 14 Volts with Taillight ON, Defogger ON
0 - 1.5 Volts with Taillight OFF, Defogger OFF

STP - E1: 7.5 - 14 Volts with Stop Light Switch ON (Brake Pedal Depressed)
0 - 1.5 Volts with Stop Light Switch OFF

#10, #20, #30, #40, #50, #60 - E01, E02: Pulse Generation (Engine Idling)
ISC1, ISC2, ISC3, ISC4 - E1: Pulse Generation (Engine Idling)

RESISTANCE OF ENGINE CONTROL MODULE
IDL1 - E2: Infinity with Throttle Valve open
0 - 2.3 K Ohms with Throttle Valve fully Closed
VTA1 - E2: 3.3 K Ohms - 10.0 K Ohms with Throttle Valve fully open
200 Ohms - 800 Ohms with Throttle Valve fully Closed

VCC - E2: 4 K Ohms - 9 K Ohms
THA - E2: 2 K Ohms - 3 K Ohms with Intake Air Temp. 20°C (68°F)
THW - E2: 200 Ohms - 400 Ohms with Coolant Temp. 80°C (176°F)
ISC1, ISC2, ISC3, ISC4 - +B: 10 - 30 Ohms
#10, #20, #30, #40, #50, #60 - +B: 13.2 - 14.2 Ohms