Service Hints
CIRCUIT OPENING RELAY1-2: Closed with starter running or measuring plate (volume air flow (air flow meter)) open
M MFI MAIN RELAY (EFI MAIN RELAY)
2-4: Closed with ignition SW at ON or ST position
V 6 VOLUME AIR FLOW (AIR FLOW METER)
1-2: Closed with starter running or measuring plate open
5-6: 0.2 - 0.6 K Ohms (measuring plate fully Closed)
0.02- 1.2 K Ohms (measuring plate fully open)
4-5: 0.2 - 0.4 K Ohms
5-7: 10.0 -20.0 K Ohms (-2°C, -4°F)
4.0 - 7.0 K Ohms ( 0°C, 32°F)
2.0 - 3.0 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)
E 3 ENGINE COOLANT TEMP. SENSOR (EFI WATER TEMP. SENSOR)
1-2: 10.0 -20.0 K Ohms (-20°C, -4°F)
4.0 - 7.0 K Ohms ( 0°C, 32°F)
2.0 - 3.0 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 6-A, E 7-B, E 8-C ENGINE CONTROL MODULE (ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU)
Voltage At Engine Control Module (ECU) Wiring Connector
BATT - E1: Always 9.0-14.0 Volts
- E1: 9.0-14.0 Volts (ignition SW at ON position)
IDL - E2: 9.0-14.0 Volts (ignition SW ON and throttle valve fully open)
0- 1.5 Volts (ignition SW ON and throttle valve fully Closed
VC - E2: 4.5-5.5 Volts (ignition SW at ON position)
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)
VS - E2: 4.0- 5.5 Volts (ignition SW at ON position)
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 (engine idling and coolant temp. 80°C, 176°F)
#10, #20 - E01: 9.0-14.0 Volts (ignition SW at ON position)
pulse generation (engine idling)
IGT - E1: pulse generation (engine idling)
IGF - E1: 4.5-5.5 Volts (ignition SW at ON position)
pulse generation (engine idling)
G1, G2 - G-: Pulse generation (engine idling)
NE - G-: Pulse generation (engine idling)
FPU - E1: 9.0-14.0 Volts (ignition SW at ON position)
0- 3.0 Volts (restarting high temp.)
ISCO, ISCC - E1: pulse generation (engine idling)
VF - E1: 1.8- 3.2 Volts (maintain engine speed at 2500 rpm for two minutes after warming up then return to idling)
OX1, OX2 - E1: Pulse generation (maintain engine speed at 2500 rpm for two minutes after warming up)
HT - E01: 9.0-14.0 Volts (engine speed 4000 rpm, coolant temp. 20°C, 68°F or higher)
Below 3.0 Volts (engine idling)
KNK - E1: Pulse generation (engine idling)
NSW - E1: 9.0-14.0 Volts (ignition SW ON and other shift position in P or N position)
Below 3.0 Volts (ignition SW ON and shift position in P or N position)
SP1 - E1: Pulse generation (ignition SW ON and rotate driving wheel slowly)
TE1 - E1: 9.0-14.0 Volts (ignition SW at ON position)
W - E1: Below 3.0 Volts (malfunction indicator lamp ON)
9.0-14.0 Volts (malfunction indicator lamp OFF and engine running)
OD1 -E1: 4.5 -5.5 Volts (ignition SW at ON position)
A/C - E1: 0- 3.0 Volts (A/C SW ON)
7.5-14.0 Volts (A/C SW OFF)
ACT - E1: 7.5-14.0 Volts (A/C SW ON)
0- 1.5 Volts (A/C SW OFF)
STA - E1: 6.0 Volts or more (engine cranking)
I 3, I 4, I 5, I 6 INJECTOR
1-2: Approx. 13.4-14.2 Ohms
T 2 THROTTLE POSITION SENSOR
3-1: 0.2-5.7 K Ohms with clearance between lever and stop screw 0 mm (0 in.)
2-1: Less than 2.3 K Ohms with clearance between lever and stop screw 0.6 mm (0.0398 in.) with clearance between lever and stop screw 1.05 mm (0.0413 in.)
3-1: 2.0-10.2 K Ohms with throttle valve fully open