Service Hints

EFI MAIN RELAY (in R/B No.2)
3 - 5: Closed with the ignition switch at ON position

EFI NO.2 RELAY (in R/B No.2)
3 - 5: Closed with the ignition switch at ON position

E3 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)

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

I12, I13, I14, I15, I16, I17 INJECTOR
1 - 2: 13.6 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

VOLTAGE AT ENGINE CONTROL MODULE WIRING CONNECTORS
BATT - E1: 9 - 14 Volts Always
IGSW - E1: 9 - 14 Volts with the ignition switch ON
M-REL - E1: 9 - 14 Volts with the ignition switch ON
+B - E1: 9 - 14 Volts with the ignition switch ON
IDL1 - E2: 9 - 14 Volts with the ignition switch ON and the throttle valve fully open
0 - 1.5 Volts with the ignition switch ON and the throttle valve fully closed

VTA1 - E2: 0.3 - 0.8 Volts with the ignition switch ON and the throttle valve fully closed
3.2 - 4.9 Volts with the ignition switch ON and the throttle valve open

THA - E2: 0.5 - 3.4 Volts with the ignition switch ON and the intake air temp. 20°C (68°F)
THW - E2: 0.2 - 1.0 Volts with the ignition switch ON and the coolant temp. 80°C (176°F)
STA - E1: 6 - 14 Volts with the engine cranking
W - E1: 9 - 14 Volts with engine idling
IGF - E1: Pulse generation (engine idling)
NSW - E1: 0 - 3 Volts with the ignition switch ON and the shift lever P or N position
9 - 14 Volts with the ignition switch ON and the shift lever except P or N position

SP1: Pulse generation
TE1, TE2 - E1: 9 - 14 Volts with the ignition switch ON
A/C - E1: 0 - 1.5 Volts with the ignition switch ON and the A/C OFF
7.5 - 14 Volts with the ignition switch ON and the A/C ON

ELS - E1: 9 - 14 Volts with the taillight ON, defogger ON
0 - 1.5 Volts with the taillight OFF, defogger OFF

STP - E1: 7.5 - 14 Volts with the stop light SW ON (brake pedal depressed)
0 - 1.5 Volts with the stop light SW OFF
#10, #20, #30, #40, #50, #60 - EO1, EO2: Pulse generation (engine idling)
ISC1, ISC2, ISC3, ISC4 - E1: Pulse generation (engine idling)

RESISTANCE AT ECM CONNECTORS
IDL1 - E2: Infinity with the throttle valve open
0 - 2.3 K Ohms with the throttle valve fully closed

VTA1 - E2: 3.3 K Ohms - 10.0 K Ohms with the throttle valve fully open
200 Ohms - 800 Ohms with the throttle valve fully closed

VCC - E2: 4 K Ohms - 9 K Ohms
THA - E2: 2 K Ohms - 3 K Ohms with the intake air temp. 20°C (68°F)
THW - E2: 200 Ohms - 400 Ohms with the 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