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.
| CAUTION | Blowing compressed air through airflow sensor will damage it. |
| Application | ECM Terminal | Volts |
|---|
| Sidekick PFI (2) |
| Ign. On, Eng. Off | B8 & Ground | 1.0-1.6 |
| Engine Idle Speed | B8 & Ground | 1.7-2.0 |
| Swift DOHC (3) |
| Ign. On, Eng. Off | C & D | 0.2-0.8 |
| (1) Voltage should increase as engine speed increases. (2) Ignition on, confirm battery voltage between +B of AFS coupler and ground. (3) With ignition on, confirm battery voltage between terminals "C" and "D" of AFS coupler. |
| (1) | Voltage should increase as engine speed increases. |
| (2) | Ignition on, confirm battery voltage between +B of AFS coupler and ground. |
| (3) | With ignition on, confirm battery voltage between terminals "C" and "D" of AFS coupler. |
AIRFLOW SENSOR VOLTAGE TEST (1)
| Temp. °F (°C) | Ohms |
|---|
| Samurai & Sidekick TBI |
| 32 (0) | 5400-6600 |
| 68 (20) | 2280-2870 |
| 104 (40) | 1060-1360 |
| 140 (60) | 530-700 |
| 176 (80) | 290-390 |
| 212 (100) | 160-230 |
| Swift SOHC |
| 32 (0) | 5880 |
| 68 (20) | 2210-2690 |
| 104 (40) | 1140 |
| 140 (60) | 580 |
| 176 (80) | 290-350 |
AIR TEMPERATURE SENSOR RESISTANCE
| Temp. °F (°C) | Ohms |
|---|
| Samurai, Sidekick & Swift SOHC |
| 32 (0) | (1) 5880 |
| 68 (20) | 2210-2690 |
| 104 (40) | 1140 |
| 140 (60) | 580 |
| 176 (80) | 290-350 |
| Swift DOHC |
| 14 (-14) | 7000-11,400 |
| 68 (20) | 2100-2900 |
| 122 (50) | 680-1000 |
| 176 (80) | 290-350 |
| (1) On Sidekick PFI, resistance should be 5210-6730 ohms. |
| (1) | On Sidekick PFI, resistance should be 5210-6730 ohms. |
COOLANT (WATER) TEMPERATURE SENSOR RESISTANCE
| Temp. °F (°C) | Ohms |
|---|
| Samurai, Sidekick & Swift DOHC |
| 68 (20) | 214,000-313,800 |
| 104 (40) | 90,900-125,700 |
| 140 (60) | 42,100-55,500 |
| 176 (80) | 21,100-26,500 |
| 212 (100) | 11,200-13,600 |
| (1) Used on California models only. |
| (1) | Used on California models only. |
RECIRCULATED EXHAUST GAS TEMP SENS (REGTS) RESISTANCE (1)
| Application | Ohms |
|---|
| All models | (1) .33-.39 |
| (1) Measured between power steering VSV terminals. |
| (1) | Measured between power steering VSV terminals. |
POWER STEERING SIGNAL VSV (IF EQUIPPED)
| Altitude (Feet) | Vacuum (In. Hg) | (1) (2) Output Voltage (Volts) |
|---|
| Samurai & Sidekick TBI |
| 0 | 30 | 3.6-4.4 |
| 1000 | 29 | 3.5-4.2 |
| 2000 | 28 | 3.4-4.1 |
| 3000 | 27 | 3.2-4.0 |
| 4000 | 26 | 3.1-3.8 |
| 5000 | 25 | 3.0-3.7 |
| 6000 | 24 | 2.9-3.6 |
| 7000 | 23 | 2.8-3.4 |
| 8000 | 22 | 2.7-3.3 |
| 9000 | 21 | 2.6-3.2 |
| 10,000 | 20 | 2.5-3.1 |
| Swift SOHC |
| 0 | 30 | 3.5-4.1 |
| 1000 | 29 | 3.4-4.0 |
| 2000 | 28 | 3.2-3.8 |
| 3000 | 27 | 3.1-3.7 |
| 4000 | 26 | 3.0-3.6 |
| 5000 | 25 | 2.9-3.5 |
| 6000 | 24 | 2.8-3.3 |
| 7000 | 23 | 2.7-3.2 |
| 8000 | 22 | 2.6-3.1 |
| 9000 | 21 | 2.5-3.0 |
| 10,000 | 20 | 2.4-2.9 |
| (1) Pressure sensor output voltage is tested with coupler connected to ECM. ECM is located near glove box on Samurai or upper left corner of instrument panel on Sidekick and Swift SOHC. Before testing pressure sensor output voltage, ensure ECM supply voltage is 4.75-5.25 volts at connector terminal A23 (Gray/Red wire) and terminal A24 (Gray/Yellow) on Samurai and Sidekick or terminal B1 (Light Green wire) and terminal A25 (Light Green/Blue) on Swift SOHC. (2) Output voltage is checked at ECM connector terminal A22 (Gray/Green wire) and terminal A24 (Gray/Yellow) on Samurai and Sidekick or terminal B2 (Light Green/Red wire) and terminal A25 (Light Green/Blue) on Swift SOHC. Start engine, if possible, and see if output voltage varies. |
| (1) | Pressure sensor output voltage is tested with coupler connected to ECM. ECM is located near glove box on Samurai or upper left corner of instrument panel on Sidekick and Swift SOHC. Before testing pressure sensor output voltage, ensure ECM supply voltage is 4.75-5.25 volts at connector terminal A23 (Gray/Red wire) and terminal A24 (Gray/Yellow) on Samurai and Sidekick or terminal B1 (Light Green wire) and terminal A25 (Light Green/Blue) on Swift SOHC. |
| (2) | Output voltage is checked at ECM connector terminal A22 (Gray/Green wire) and terminal A24 (Gray/Yellow) on Samurai and Sidekick or terminal B2 (Light Green/Red wire) and terminal A25 (Light Green/Blue) on Swift SOHC. Start engine, if possible, and see if output voltage varies. |
PRESSURE SENSOR OUTPUT VOLTAGE (ON-VEHICLE)
| CAUTION | Damage to pressure sensor will occur if connections are made incorrectly. |
| Altitude (Feet) | Vacuum (In. Hg) | (1) (2) Output Voltage (Volts) |
|---|
| Samurai & Sidekick TBI |
| 0 | 30 | 3.4-3.8 |
| 1000 | 29 | 3.3-3.7 |
| 2000 | 28 | 3.1-3.6 |
| 3000 | 27 | 3.0-3.5 |
| 4000 | 26 | 2.9-3.3 |
| 5000 | 25 | 2.8-3.2 |
| 6000 | 24 | 2.7-3.1 |
| 7000 | 23 | 2.6-3.0 |
| 8000 | 22 | 2.5-2.9 |
| 9000 | 21 | 2.4-2.8 |
| 10,000 | 20 | 2.3-2.7 |
| Swift SOHC |
| 0-2000 | 28-30 | 2.9-4.2 |
| 2001-5000 | 25-28 | 2.7-4.0 |
| 5001-8000 | 22-25 | 2.5-3.8 |
| 8001-10,000 | 20-22 | 2.0-3.3 |
| (1) Pressure sensor output voltage is tested with three 1.5-volt batteries connected in series (output 4.5-5.0 volts). Positive lead of batteries is connected to VIN terminal on Samurai, Sidekick and Swift SOHC. Negative lead of batteries is connected to ground terminal. Check output voltage between VOUT terminal and ground. (2) Voltage should reduce when up to 15 in. Hg of vacuum is applied to pressure sensor. |
| (1) | Pressure sensor output voltage is tested with three 1.5-volt batteries connected in series (output 4.5-5.0 volts). Positive lead of batteries is connected to VIN terminal on Samurai, Sidekick and Swift SOHC. Negative lead of batteries is connected to ground terminal. Check output voltage between VOUT terminal and ground. |
| (2) | Voltage should reduce when up to 15 in. Hg of vacuum is applied to pressure sensor. |
PRESSURE SENSOR OUTPUT VOLTAGE (OFF-VEHICLE)
| Application | Ohms |
|---|
| Samurai |
| Between Terminals "C" & "D" |
| With .008" (.20 mm) Clearance At Stop Screw | 0-550 |
| With .016" (.41 mm) Clearance At Stop Screw | Infinity |
| Between Terminals "A" & "D" | 3500-6500 |
| Between Terminals "B" & "D" |
| At Idle | (1) 0-2000 |
| At Wide Open Throttle | (2) 2000-6500 |
| Sidekick PFI |
| Between Terminals "A" & "B" |
| With .020" (.50 mm) Clearance At Stop Screw | 0-500 |
| With .031" (.80 mm) Clearance At Stop Screw | Infinity |
| Between Terminals "A" & "D" | 3500-6500 |
| Between terminals "A" & "C" |
| At Idle | 300-2000 |
| At Wide Open Throttle | (2) 2000-6500 |
| Sidekick TBI |
| Between Terminals "C" & "D" |
| With .012" (.3 mm) Clearance At Stop Screw | 0-500 |
| With .020" (.5 mm) Clearance At Stop Screw | Infinity |
| Between Terminals "A" & "D" | 3500-6500 |
| Between terminals "B" & "D" |
| At Idle | (1) 300-2000 |
| At Wide Open Throttle | (2) 2000-6500 |
| Swift DOHC |
| Between Terminals "C" & "D" |
| With .012" (.30 mm) Clearance At Stop Screw | 0-500 |
| With .035" (.89 mm) Clearance At Stop Screw | Infinity |
| Between Terminals "C" & "A" | 3500-6500 |
| Between Terminals "C" & "B" |
| At Idle | 0-2000 |
| At Wide Open Throttle | 3500-6500 |
| Swift SOHC (3) |
| Between Terminals "A" & "B" |
| With .012" (.30 mm) Clearance At Stop Screw | Less Than 5000 |
| With .035" (.89 mm) Clearance At Stop Screw | Infinity |
| Between Terminals "A" & "D" | 4370-8130 |
| Between Terminals "A" & "C" |
| At Idle | 240-1140 |
| At Wide Open Throttle | 3170-6600 |
| (1) To obtain idle position, apply 19 in. Hg vacuum to throttle opener. (2) There should be more than 2000 ohms difference between idle and wide open throttle readings. (3) Throttle position sensor is used only on auto. transaxle, manual transaxle uses a throttle switch. |
| (1) | To obtain idle position, apply 19 in. Hg vacuum to throttle opener. |
| (2) | There should be more than 2000 ohms difference between idle and wide open throttle readings. |
| (3) | Throttle position sensor is used only on auto. transaxle, manual transaxle uses a throttle switch. |
THROTTLE POSITION SENSOR (TPS) RESISTANCE
VEHICLE SPEED SENSOR
With ohmmeter leads connected to vehicle speed sensor terminals, ohmmeter should alternate between zero and infinity 4 times per speedometer revolution.
