Terminal voltage (reference data)

Z-39spec table

Terminal 1V differs for MTX (clutch/neutral switch) vs ATX (transaxle range switch). 2H connection varies by market: DRL relay (Canada), Vgg2 (California), Open (Federal).

Continued from Z-38

B-1

NOTE

B+: Battery positive voltage

Terminal voltage (reference data) — terminals 1V–2M

Terminal	Input/Output	Connection to	Test condition	Correct voltage	Remark
1V	Input	Clutch switch / Neutral switch (MTX)	Clutch pedal depressed	0V	Ignition switch ON
1V	Input	Clutch switch / Neutral switch (MTX)	Neutral position	0V	Ignition switch ON
1V	Input	Clutch switch / Neutral switch (MTX)	Others	B+	Ignition switch ON
1V	Input	Transaxle range switch (ATX)	N or P range	0V	Ignition switch ON
1V	Input	Transaxle range switch (ATX)	Others	B+	Ignition switch ON
2A	—	Ground (Fuel injector)	Constant	0V	—
2B	—	Ground (Output)	Constant	0V	—
2C	—	Ground (CPU)	Constant	0V	—
2D	—	Ground (Output)	Constant	0V	—
2E	Input	Distributor (SGT signal)	Ignition switch ON	Approx. 0V or 4.5–5.5V	—
2E	Input	Distributor (SGT signal)	Idle	Approx. 2V	—
2F	Input	Mass air flow sensor (VGN signal)	Ignition switch ON	Below 1.0V	—
2F	Input	Mass air flow sensor (VGN signal)	Idle	Approx. 1.0V	—
2G	Input	Distributor (SGC signal)	Ignition switch ON	Approx. 0V or 4.5–5.5V	—
2G	Input	Distributor (SGC signal)	Idle	Approx. 1.5V	—
2H	Input	DRL relay (CANADA)	Parking brake pulled up with ignition switch ON	0V	—
2H	Input	DRL relay (CANADA)	Parking brake released with ignition switch ON	Below 2.5V	—
2H	Input	Vgg2 (California)	Ignition switch ON	Approx. 5V	—
2H	Input	Open (Federal)	—	—	—
2I	Output	Rear window defroster relay	Rear window defroster switch OFF	B+	Ignition switch ON
2I	Output	Rear window defroster relay	Rear window defroster switch ON	Below 1.0V	Ignition switch ON
2J	Output	EGR valve position sensor	Ignition switch ON	Approx. 1.0V	—
2J	Output	EGR valve position sensor	While running	Approx. 0–5V	—
2K	Output	Vgg2	Ignition switch ON	Approx. 5V	—
2L	Input	Brake switch	Brake pedal released	Below 1.0V	—
2L	Input	Brake switch	Brake pedal depressed	B+	—
2M	Input	Throttle position sensor	Accelerator pedal released	0.1–1.1V	Ignition switch ON
2M	Input	Throttle position sensor	Accelerator pedal fully depressed	2.8–4.5V	Ignition switch ON

Input/OutputInput

Connection toClutch switch / Neutral switch (MTX)

Test conditionClutch pedal depressed

Correct voltage0V

RemarkIgnition switch ON

Input/OutputInput

Connection toClutch switch / Neutral switch (MTX)

Test conditionNeutral position

Correct voltage0V

RemarkIgnition switch ON

Input/OutputInput

Connection toClutch switch / Neutral switch (MTX)

Test conditionOthers

Correct voltageB+

RemarkIgnition switch ON

Input/OutputInput

Connection toTransaxle range switch (ATX)

Test conditionN or P range

Correct voltage0V

RemarkIgnition switch ON

Input/OutputInput

Connection toTransaxle range switch (ATX)

Test conditionOthers

Correct voltageB+

RemarkIgnition switch ON

Input/Output—

Connection toGround (Fuel injector)

Test conditionConstant

Correct voltage0V

Remark—

Input/Output—

Connection toGround (Output)

Test conditionConstant

Correct voltage0V

Remark—

Input/Output—

Connection toGround (CPU)

Test conditionConstant

Correct voltage0V

Remark—

Input/Output—

Connection toGround (Output)

Test conditionConstant

Correct voltage0V

Remark—

Input/OutputInput

Connection toDistributor (SGT signal)

Test conditionIgnition switch ON

Correct voltageApprox. 0V or 4.5–5.5V

Remark—

Input/OutputInput

Connection toDistributor (SGT signal)

Test conditionIdle

Correct voltageApprox. 2V

Remark—

Input/OutputInput

Connection toMass air flow sensor (VGN signal)

Test conditionIgnition switch ON

Correct voltageBelow 1.0V

Remark—

Input/OutputInput

Connection toMass air flow sensor (VGN signal)

Test conditionIdle

Correct voltageApprox. 1.0V

Remark—

Input/OutputInput

Connection toDistributor (SGC signal)

Test conditionIgnition switch ON

Correct voltageApprox. 0V or 4.5–5.5V

Remark—

Input/OutputInput

Connection toDistributor (SGC signal)

Test conditionIdle

Correct voltageApprox. 1.5V

Remark—

Input/OutputInput

Connection toDRL relay (CANADA)

Test conditionParking brake pulled up with ignition switch ON

Correct voltage0V

Remark—

Input/OutputInput

Connection toDRL relay (CANADA)

Test conditionParking brake released with ignition switch ON

Correct voltageBelow 2.5V

Remark—

Input/OutputInput

Connection toVgg2 (California)

Test conditionIgnition switch ON

Correct voltageApprox. 5V

Remark—

Input/OutputInput

Connection toOpen (Federal)

Test condition—

Correct voltage—

Remark—

Input/OutputOutput

Connection toRear window defroster relay

Test conditionRear window defroster switch OFF

Correct voltageB+

RemarkIgnition switch ON

Input/OutputOutput

Connection toRear window defroster relay

Test conditionRear window defroster switch ON

Correct voltageBelow 1.0V

RemarkIgnition switch ON

Input/OutputOutput

Connection toEGR valve position sensor

Test conditionIgnition switch ON

Correct voltageApprox. 1.0V

Remark—

Input/OutputOutput

Connection toEGR valve position sensor

Test conditionWhile running

Correct voltageApprox. 0–5V

Remark—

Input/OutputOutput

Connection toVgg2

Test conditionIgnition switch ON

Correct voltageApprox. 5V

Remark—

Input/OutputInput

Connection toBrake switch

Test conditionBrake pedal released

Correct voltageBelow 1.0V

Remark—

Input/OutputInput

Connection toBrake switch

Test conditionBrake pedal depressed

Correct voltageB+

Remark—

Input/OutputInput

Connection toThrottle position sensor

Test conditionAccelerator pedal released

Correct voltage0.1–1.1V

RemarkIgnition switch ON

Input/OutputInput

Connection toThrottle position sensor

Test conditionAccelerator pedal fully depressed

Correct voltage2.8–4.5V

RemarkIgnition switch ON

Terminal voltage (reference data) — terminals 2N–2Z

Terminal	Input/Output	Connection to	Test condition	Correct voltage	Remark
2N	Input	Heated oxygen sensor	Ignition switch ON	0V	—
2N	Input	Heated oxygen sensor	Idle (Cold engine)	0V	—
2N	Input	Heated oxygen sensor	Idle (After warm-up)	0.5–1.0V	—
2N	Input	Heated oxygen sensor	Increasing engine speed (After warm-up)	0.5–1.0V	—
2N	Input	Heated oxygen sensor	Deceleration	0–0.4V	—
2O	Input	Mass air flow sensor (VGP signal)	Ignition switch ON	Below 1.0V	—
2O	Input	Mass air flow sensor (VGP signal)	Idle	1.0–2.0V	—
2P	Input	Intake air temperature sensor	Ambient air temperature 20°C (68°F)	Approx. 2.5V	Built-in mass air flow sensor; Ignition switch ON
2Q	Input	Engine coolant temperature sensor	Engine coolant temperature 20°C (68°F)	Approx. 2.5V	Ignition switch ON
2Q	Input	Engine coolant temperature sensor	Engine coolant temperature 80°C (176°F)	Below 0.5V	Ignition switch ON
2R	Output	PRC solenoid valve	Hot condition: Engine coolant temperature between 85°C (185°F) and 95°C (203°F) and Intake air temperature between 40°C (1[?]°F) and 60°C (140°F) for 149 sec. after engine starting	Below 1.0V	—
2R	Output	PRC solenoid valve	Other condition at idle	B+	—
2S	—	—	—	—	—
2T	Output	Fuel pump relay	Ignition switch ON	B+	—
2T	Output	Fuel pump relay	During cranking or at idle	0	—
2U	Output	Fuel injector (No.1)	Ignition switch ON	B+	Engine Signal Monitor: Green and red lamps flash
2U	Output	Fuel injector (No.1)	Idle	B+	Engine Signal Monitor: Green and red lamps flash
2U	Output	Fuel injector (No.1)	Engine speed above 2,000 rpm on deceleration (After warm-up)	B+	Engine Signal Monitor: Green and red lamps flash
2V	Output	Fuel injector (No.2)	Idle	B+	Engine Signal Monitor: Green and red lamps flash
2V	Output	Fuel injector (No.2)	Engine speed above 2,000 rpm on deceleration (After warm-up)	B+	Engine Signal Monitor: Green and red lamps flash
2W	Output	IAC valve	Ignition switch ON	Approx. 2.0V	—
2W	Output	IAC valve	Idle	Approx. 10V	—
2X	Output	Purge solenoid valve	Idle	B+	—
2Y	Output	Fuel injector (No.3)	Idle	B+	Engine Signal Monitor: Green and red lamps flash
2Y	Output	Fuel injector (No.3)	Engine speed above 2,000 rpm on deceleration (After warm-up)	B+	Engine Signal Monitor: Green and red lamps flash
2Z	Output	Fuel injector (No.4)	Idle	B+	Engine Signal Monitor: Green and red lamps flash
2Z	Output	Fuel injector (No.4)	Engine speed above 2,000 rpm on deceleration (After warm-up)	B+	Engine Signal Monitor: Green and red lamps flash

Input/OutputInput

Connection toHeated oxygen sensor

Test conditionIgnition switch ON

Correct voltage0V

Remark—

Input/OutputInput

Connection toHeated oxygen sensor

Test conditionIdle (Cold engine)

Correct voltage0V

Remark—

Input/OutputInput

Connection toHeated oxygen sensor

Test conditionIdle (After warm-up)

Correct voltage0.5–1.0V

Remark—

Input/OutputInput

Connection toHeated oxygen sensor

Test conditionIncreasing engine speed (After warm-up)

Correct voltage0.5–1.0V

Remark—

Input/OutputInput

Connection toHeated oxygen sensor

Test conditionDeceleration

Correct voltage0–0.4V

Remark—

Input/OutputInput

Connection toMass air flow sensor (VGP signal)

Test conditionIgnition switch ON

Correct voltageBelow 1.0V

Remark—

Input/OutputInput

Connection toMass air flow sensor (VGP signal)

Test conditionIdle

Correct voltage1.0–2.0V

Remark—

Input/OutputInput

Connection toIntake air temperature sensor

Test conditionAmbient air temperature 20°C (68°F)

Correct voltageApprox. 2.5V

RemarkBuilt-in mass air flow sensor; Ignition switch ON

Input/OutputInput

Connection toEngine coolant temperature sensor

Test conditionEngine coolant temperature 20°C (68°F)

Correct voltageApprox. 2.5V

RemarkIgnition switch ON

Input/OutputInput

Connection toEngine coolant temperature sensor

Test conditionEngine coolant temperature 80°C (176°F)

Correct voltageBelow 0.5V

RemarkIgnition switch ON

Input/OutputOutput

Connection toPRC solenoid valve

Test conditionHot condition: Engine coolant temperature between 85°C (185°F) and 95°C (203°F) and Intake air temperature between 40°C (1[?]°F) and 60°C (140°F) for 149 sec. after engine starting

Correct voltageBelow 1.0V

Remark—

Input/OutputOutput

Connection toPRC solenoid valve

Test conditionOther condition at idle

Correct voltageB+

Remark—

Input/Output—

Connection to—

Test condition—

Correct voltage—

Remark—

Input/OutputOutput

Connection toFuel pump relay

Test conditionIgnition switch ON

Correct voltageB+

Remark—

Input/OutputOutput

Connection toFuel pump relay

Test conditionDuring cranking or at idle

Correct voltage0

Remark—

Input/OutputOutput

Connection toFuel injector (No.1)

Test conditionIgnition switch ON

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.1)

Test conditionIdle

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.1)

Test conditionEngine speed above 2,000 rpm on deceleration (After warm-up)

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.2)

Test conditionIdle

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.2)

Test conditionEngine speed above 2,000 rpm on deceleration (After warm-up)

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toIAC valve

Test conditionIgnition switch ON

Correct voltageApprox. 2.0V

Remark—

Input/OutputOutput

Connection toIAC valve

Test conditionIdle

Correct voltageApprox. 10V

Remark—

Input/OutputOutput

Connection toPurge solenoid valve

Test conditionIdle

Correct voltageB+

Remark—

Input/OutputOutput

Connection toFuel injector (No.3)

Test conditionIdle

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.3)

Test conditionEngine speed above 2,000 rpm on deceleration (After warm-up)

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.4)

Test conditionIdle

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

Input/OutputOutput

Connection toFuel injector (No.4)

Test conditionEngine speed above 2,000 rpm on deceleration (After warm-up)

Correct voltageB+

RemarkEngine Signal Monitor: Green and red lamps flash

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Terminal voltage (reference data)

B-1

Terminal voltage (reference data) — terminals 1V–2M

Terminal voltage (reference data) — terminals 2N–2Z

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