INTRODUCTION
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.
Note. Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
| Application | (1) Volts |
|---|
| Justy | (2) |
| Legacy |
| ECU Pin No. 8 & Ground (3) |
| Engine Off | 0-13 |
| At Idle | 13-14 |
| ECU Pin No. 9 & Ground (3) |
| Engine Off | 0-.3 |
| At Idle | .8-1.2 |
| ECU Pin No. 10 & Ground (3) |
| Engine Off | Zero |
| At Idle | Zero |
| Loyale PFI (4) | 1.0-2.0 |
| Loyale TBI: White & Black Wire Terminals (3) | 0.1-0.5 |
| XT & XT6: White & Black/Red Wire Terminals (3) | 1.0-2.0 |
| (1) Voltage should be higher when blowing air through inlet side of airflow meter. (2) Justy does not have airflow meter. (3) Connect voltmeter between these 2 terminals of airflow meter connector. (4) Connect voltmeter between Black/Red wire terminal and sealed wire terminal next to unused terminal. |
| (1) | Voltage should be higher when blowing air through inlet side of airflow meter. |
| (2) | Justy does not have airflow meter. |
| (3) | Connect voltmeter between these 2 terminals of airflow meter connector. |
| (4) | Connect voltmeter between Black/Red wire terminal and sealed wire terminal next to unused terminal. |
| Terminal | Specification |
|---|
| Red Wire & Ground | One Megohm (Min.) |
| White Wire & Ground | One Megohm (Min.) |
| Black Wire & Ground | One Megohm (Min.) |
| Black/Red Wire & Ground | Zero Ohm |
| (1) Measure resistance between indicated terminal of airflow sensor connector and ground. |
| (1) | Measure resistance between indicated terminal of airflow sensor connector and ground. |
AIRFLOW SENSOR RESISTANCE (LEGACY) (1)
| Temperature | Ohms |
|---|
| 68°F (20°C) | 2000-3000 |
| 176°F (80°C) | 270-370 |
| (1) Measure resistance between air temperature sensor connector terminals. |
| (1) | Measure resistance between air temperature sensor connector terminals. |
AIR TEMP SENSOR RESISTANCE (JUSTY CARB.) (1)
Atmospheric Pressure Sensor
See G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section for testing information.
| Wire Colors | (1) Volts |
|---|
| Black & White | .1 (Minimum) |
| (1) Turn ignition on. Voltage will vary with each engine revolution. |
| (1) | Turn ignition on. Voltage will vary with each engine revolution. |
CAM ANGLE SENSOR VOLTAGE (LEGACY)
| Application (1) | Temperature | Ohms |
|---|
| Justy PFI |
| & Legacy | 68°F (20°C) | 2000-3000 |
| & Legacy | 176°F (80°C) | 270-330 |
| All Others | 14°F (-10°C) | 7000-11,500 |
| All Others | 68°F (20°C) | 2000-3000 |
| All Others | 122°F (50°C) | 700-1000 |
| (1) Information is not available for Justy carbureted. |
| (1) | Information is not available for Justy carbureted. |
COOLANT TEMP SENSOR RESISTANCE
| Application | Wires Colors | (1) Volts |
|---|
| Legacy | Black & White | .1 (Minimum) |
| Loyale PFI | Black & Ground | 4 (Minimum) |
| Loyale | White & Ground | 4 (Minimum) |
| Loyale | Red & Ground | 10 (Minimum) |
| (1) Turn ignition on. Voltage will vary with each engine revolution. For testing information on other models, see G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section. |
| (1) | Turn ignition on. Voltage will vary with each engine revolution. For testing information on other models, see G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section. |
CRANK ANGLE SENSOR VOLTAGE
| Distributor Terminals | (1) Volts |
|---|
| Black Wire & Green Wire | 0-.5 |
| (1) Measure voltage between distributor terminal (sensor side) while cranking engine. Voltage should vary while cranking engine. |
| (1) | Measure voltage between distributor terminal (sensor side) while cranking engine. Voltage should vary while cranking engine. |
CYLINDER DISTINCTION (TDC) SENSOR VOLTAGE (JUSTY PFI)
| ECU/Distributor Terminals | (1) Ohms |
|---|
| No. 5 & Black Wire | One Or Less |
| No. 6 & Green Wire | One Or Less |
| No. 5 & Ground | Infinity |
| No. 6 & Ground | Infinity |
| (1) Measure resistance between ECU pin No. and distributor terminal (sensor side). |
| (1) | Measure resistance between ECU pin No. and distributor terminal (sensor side). |
CYL. DISTINCTION (TDC) SENSOR RESISTANCE (JUSTY PFI)
| Application | Ohms |
|---|
| All Models | 532,000-588,000 |
| (1) Measure resistance between ground and connector terminal. |
| (1) | Measure resistance between ground and connector terminal. |
DETONATION (KNOCK) SENSOR RESISTANCE (1)
EGR Temperature Sensor (Loyale TBI)
For testing information, see G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.
| Application | Volts |
|---|
| Loyale (California) |
| Black/White Wire & Ground | 10 Or Less |
| White Wire & Ground | .05 Or More |
| All Others | (1) 0.1-0.9 |
| (1) Measure voltage between oxygen sensor connector terminal and ground. |
| (1) | Measure voltage between oxygen sensor connector terminal and ground. |
| Terminals | Voltage |
|---|
| Sensor Connector |
| Red Wire & Black Wire | (2) 3.1 |
| Red Wire & Black Wire | (3) 2.6 |
| Red Wire & Black Wire | (4) 2.1 |
| (1) Apply 5 volts across terminals No. 1 (White wire) and 2 (Red wire), then connect terminal No. 1 to positive voltage and terminal No. 2 to negative voltage. Install vacuum pump to pressure sensor hose fitting. Measure voltage across indicated terminals when pressure is applied to pressure sensor. (2) With 7.87 in. Hg applied to pressure sensor. (3) With Zero in. Hg applied to pressure sensor. (4) With -7.87 in. Hg applied to pressure sensor. |
| (1) | Apply 5 volts across terminals No. 1 (White wire) and 2 (Red wire), then connect terminal No. 1 to positive voltage and terminal No. 2 to negative voltage. Install vacuum pump to pressure sensor hose fitting. Measure voltage across indicated terminals when pressure is applied to pressure sensor. |
| (2) | With 7.87 in. Hg applied to pressure sensor. |
| (3) | With Zero in. Hg applied to pressure sensor. |
| (4) | With -7.87 in. Hg applied to pressure sensor. |
TURBOCHARGER PRESSURE SENSOR VOLTAGE (LEGACY) (1)
| ECU Connector (1) | Sensor Connector | Ohms |
|---|
| Pin No. 3 | White Wire | 0 |
| Pin No. 4 | Black Wire | 0 |
| Pin No. 5 | Red Wire | 0 |
| (1) Disconnect ECU and pressure sensor connectors. Measure resistance between indicated pins and terminals of connectors. |
| (1) | Disconnect ECU and pressure sensor connectors. Measure resistance between indicated pins and terminals of connectors. |
TURBOCHARGER PRESSURE SENSOR RESISTANCE (LEGACY)
| Application (1) | (2) TPS Connector Terminals | Ohms |
|---|
| Total Resistance |
| Legacy | Black Wire & Red Wire | 12,000 |
| Loyale PFI | Black Wire & White Wire | 6000-18,000 |
| Loyale TBI | Black Wire & Red Wire | 3500-6500 |
| XT & XT6 | Black Wire & White Wire | 6000-18,000 |
| Variable Resistance |
| Legacy |
| Throttle Closed | Black Wire & White Wire | 1000 |
| Throttle Open | Black Wire & White Wire | 4300 |
| Loyale PFI |
| Throttle Closed | Black Wire & Red Wire | 5800-17,800 |
| Throttle Open | Black Wire & Red Wire | 1500-5100 |
| Loyale TBI |
| Throttle Closed | Black Wire & Green Wire | 1000 Or Less |
| Throttle Open | Black Wire & Red Wire | 2400 Or More |
| XT |
| Throttle Closed | Black Wire & Brown Wire | 5800-17,800 |
| Throttle Open | Black Wire & Brown Wire | 1500-5100 |
| XT6 |
| Throttle Closed | Black Wire & Brown Wire | 4200-15,000 |
| Throttle Open | Black Wire & Brown Wire | 100-1100 |
| (1) Justy is not equipped with TPS. (2) Disconnect TPS connector. At component side of connector, connect ohmmeter between the indicated terminals. |
| (1) | Justy is not equipped with TPS. |
| (2) | Disconnect TPS connector. At component side of connector, connect ohmmeter between the indicated terminals. |
THROTTLE POSITION SENSOR (TPS) RESISTANCE
| Application (1) | (2) Terminals |
|---|
| Justy 1.2L PFI | (3) Blue/White Wire & Black/Red Wire |
| Legacy | Brown Wire & Black Wire |
| Loyale PFI | Blue/White Wire & Black/Red Wire |
| Loyale TBI | Light Green Wire & Black Wire |
| XT | Blue/White Wire & Black Wire |
| XT6 | Green/Yellow Wire & Black Wire |
| (1) Justy carbureted models do not have throttle switch. (2) On all models except Loyale PFI, disconnect TPS connector. On Loyale PFI, disconnect throttle switch connector. On all models, check continuity between indicated terminals of connector. There should be continuity with throttle closed and no continuity with throttle open. (3) In addition to idle switch function, throttle switch also contains wide open throttle switch function. To test wide open throttle switch function, check continuity between Green/Red wire and Black/Red wire terminals of throttle switch connector. There should be continuity with throttle fully open (at least 50 degrees) and no continuity with throttle closed. |
| (1) | Justy carbureted models do not have throttle switch. |
| (2) | On all models except Loyale PFI, disconnect TPS connector. On Loyale PFI, disconnect throttle switch connector. On all models, check continuity between indicated terminals of connector. There should be continuity with throttle closed and no continuity with throttle open. |
| (3) | In addition to idle switch function, throttle switch also contains wide open throttle switch function. To test wide open throttle switch function, check continuity between Green/Red wire and Black/Red wire terminals of throttle switch connector. There should be continuity with throttle fully open (at least 50 degrees) and no continuity with throttle closed. |
THROTTLE SWITCH (IDLE SWITCH) CONTINUITY
Vacuum/Pressure Sensor (Justy Carbureted)
See HIGH ALTITUDE COMPENSATOR in & I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section. Also, check for possible trouble codes. See G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.
| Application | ECU Connector Pin No. | Wire Color |
|---|
| Justy Carb. | 6 (22-Pin) | LT GRN/BLK |
| Justy PFI | 4 (22-Pin) | LT GRN/BLK |
| Legacy | 11 (12-Pin) | GRN/BLK |
| Loyale PFI | 29 (16-Pin) | YEL/GRN |
| Loyale TBI | 22 (24-Pin) | YEL/GRN |
| XT & XT6 | 29 (16-Pin) | YEL/RED |
| (1) Turn ignition on. Connect voltmeter between indicated terminal and ground. Slowly rotate drive wheels. Voltage should fluctuate between zero and approx. 5 volts (Legacy) or 2 volts (all others). |
| (1) | Turn ignition on. Connect voltmeter between indicated terminal and ground. Slowly rotate drive wheels. Voltage should fluctuate between zero and approx. 5 volts (Legacy) or 2 volts (all others). |
VEHICLE SPEED SENSOR VOLTAGE (1)
