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.
For individual component and system diagnostic test procedures, see SYSTEM & COMPONENT TESTING article.
| Temperature °F (°C) | Ohms |
|---|
| 14-122 (-10-50) | 185-275 |
| 122-212 (50-100) | 240-325 |
| (1) Measured at sensor while disconnected with ignition off. |
| (1) | Measured at sensor while disconnected with ignition off. |
CAMSHAFT POSITION (CMP) SENSOR RESISTANCE - ESTEEM & SWIFT (1)
| Application | PCM Connector/Terminal No. | Volts |
|---|
| Esteem & Swift | B/2 & Ground | (2) 0-5 |
| Vitara 1.6L | C51-2-26 & Ground | (2) 0-6 |
| Vitara 2.0L | C51-2-26 & C51-3-26 | (3) 0-5.25 |
| Grand Vitara | B/9 & B/20 | (4) 0-6 |
| (1) Measured at PCM with ignition on. (2) Voltage toggles from 0-1 volt to 4-6 volts (4-5 volts on Esteem and Swift) as magnet is passed by sensor face (one mm distance). (3) Voltage toggles from 0-1 volt to 4-6 volts as CMP sensor coupling is rotated. (4) Voltage toggles from 0-1 volt to 4-6 volts as crankshaft is turned slowly. |
| (1) | Measured at PCM with ignition on. |
| (2) | Voltage toggles from 0-1 volt to 4-6 volts (4-5 volts on Esteem and Swift) as magnet is passed by sensor face (one mm distance). |
| (3) | Voltage toggles from 0-1 volt to 4-6 volts as CMP sensor coupling is rotated. |
| (4) | Voltage toggles from 0-1 volt to 4-6 volts as crankshaft is turned slowly. |
CAMSHAFT POSITION (CMP) SENSOR VOLTAGE (1)
| Application | Ohms @ 68°F (20°C) |
|---|
| Esteem, Swift & Vitara 1.6L | 360-460 |
| Vitara 2.0L & Grand Vitara 2.5L | 485-655 |
CRANKSHAFT POSITION (CKP) SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|
| 32 (0) | 5740 |
| 68 (20) | 2280-2610 |
| 104 (40) | 1150 |
| 140 (60) | 584 |
| 176 (80) | 303-326 |
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Fuel Level/Application | Ohms |
|---|
| Full |
| Esteem, Swift & Vitara 1.6L & 2.0L | 0-10 |
| Grand Vitara 2.5L | 2-4 |
| 1/2 Full |
| Esteem, Swift & Vitara 1.6L & 2.0L | 32.5 |
| Empty |
| Esteem | 120 |
| Swift | 100+ |
| Vitara 1.6L & 2.0L | 90-130 |
| Grand Vitara 2.5L | 119-121 |
| (1) See DTC P0461: FUEL LEVEL SENSOR CIRCUIT PERFORMANCE in appropriate SELF-DIAGNOSTICS article for proper testing and repair procedures. |
| (1) | See DTC P0461: FUEL LEVEL SENSOR CIRCUIT PERFORMANCE in appropriate SELF-DIAGNOSTICS article for proper testing and repair procedures. |
FUEL LEVEL SENSOR RESISTANCE (1)
| CAUTION | Damage to FTP sensor will occur if connections are made incorrectly. |
| Vacuum In.Hg (kPa) | Pressure psi (kPa) | Voltage |
|---|
| 0 | 0 | 2-3 |
| 2.0 (6.6) | — | 0-2 |
| — | 2.0 (6.6) | 3-5 |
| (1) See FIG. 4: TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article for proper hookup and test procedures. |
| (1) | See FIG. 4: TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article for proper hookup and test procedures. |
FUEL TANK PRESSURE (FTP) SENSOR VOLTAGE (1)
| Application | (2) Ohms |
|---|
| Esteem, Grand Vitara 2.5L & Swift | 5-7 |
| Vitara 1.6L & 2.0L |
| With Warm-Up Three-Way Catalyst (WU-TWC) | 4.5-5.7 |
| Without Warm-Up Three-Way Catalyst (WU-TWC) (3) | 11.7-14.3 |
| (1) Ohms values apply to both HO2S-1 and HO2S-2 sensors. (2) Measure resistance of HO2S heater at 68°F (20°C). (3) Applies only to HO2S-1. |
| (1) | Ohms values apply to both HO2S-1 and HO2S-2 sensors. |
| (2) | Measure resistance of HO2S heater at 68°F (20°C). |
| (3) | Applies only to HO2S-1. |
HEATED OXYGEN SENSOR (HO2S) HEATER RESISTANCE (1)
| Temperature °F (°C) | (1) Ohms |
|---|
| 32 (0) | 5880 |
| 68 (20) | 2210-2690 |
| 104 (40) | 1140 |
| 140 (60) | 580 |
| 176 (80) | 290-350 |
| (1) Approximate values are given. See INTAKE AIR TEMPERATURE (IAT) SENSOR under SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article for resistance graph and test procedure. |
| (1) | Approximate values are given. See INTAKE AIR TEMPERATURE (IAT) SENSOR under SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article for resistance graph and test procedure. |
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| CAUTION | Damage to MAP sensor will occur if connections are made incorrectly. |
| Altitude (Feet) | Vacuum (In. Hg) | (2) Volts |
|---|
| 0-2000 | 28-30 | 3.1-3.6 |
| 2001-5000 | 25-28 | 2.8-3.4 |
| 5001-8000 | 22-25 | 2.6-3.1 |
| 8001-10,000 | 20-22 | 2.4-2.9 |
| (1) For proper MAP sensor test procedure, see Fig. 4: TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article. (2) Voltage should drop in direct proportion to vacuum applied to MAP sensor port (up to 16 In Hg). |
| (1) | For proper MAP sensor test procedure, see Fig. 4: TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article. |
| (2) | Voltage should drop in direct proportion to vacuum applied to MAP sensor port (up to 16 In Hg). |
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR OUTPUT VOLTAGE (OFF-VEHICLE) - ESTEEM & SWIFT (1)
| Vacuum (In. Hg) | Scan Tool Display (kPa) |
|---|
| 0 | 100 |
| 8 | 73 |
| 20 | 33 |
| (1) With scan tool installed, ignition on, and specified vacuum applied to MAP sensor. |
| (1) | With scan tool installed, ignition on, and specified vacuum applied to MAP sensor. |
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR OUTPUT (ON-VEHICLE) - ESTEEM & SWIFT (1)
| CAUTION | Blowing compressed air through mass airflow sensor will damage it. |
| Application | PCM Connector/Terminal No. | Volts |
|---|
| Vitara 1.6L & 2.0 |
| Ign. On, Eng. Off | C51-3-10 & Ground | 1.0-1.6 |
| Engine At Idle | C51-3-10 & Ground | 1.7-2.0 |
| Grand Vitara 2.5L |
| Ign. On, Eng. Off | B/20 & B/23 | 0.5-1.0 |
| Engine At Idle | | 1.5-1.8 |
| (1) Voltage should increase as engine speed increases. |
| (1) | Voltage should increase as engine speed increases. |
MASS AIRFLOW (MAF) SENSOR VOLTAGE TEST (GRAND VITARA & VITARA) (1)
| CAUTION | Damage to MDP sensor will occur if connections are made incorrectly. |
| Vacuum (In. Hg) | (2) Volts |
|---|
| 7.8 | 2.40-4.40 |
| 9.8 | 2.13-4.13 |
| 11.8 | 1.86-3.86 |
| 13.8 | 1.59-3.59 |
| 15.7 | 1.39-3.32 |
| (1) For proper MDP sensor test procedure, see TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article. (2) Voltage should drop in direct proportion to vacuum applied at MAP sensor port (up to 16 In Hg). |
| (1) | For proper MDP sensor test procedure, see TESTING MAP, MDP & FTP SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article. |
| (2) | Voltage should drop in direct proportion to vacuum applied at MAP sensor port (up to 16 In Hg). |
MANIFOLD DIFFERENTIAL PRESSURE (MDP) SENSOR RESISTANCE (GRAND VITARA & VITARA) (1)
| Application | Ohms |
|---|
| Esteem & Swift |
| Between Terminals 1 & 2 | 2500-6000 |
| Between Terminals 1 & 3 |
| At Idle | 100 |
| At Wide Open Throttle | 20,000 |
| Vitara & Grand Vitara |
| Between Terminals 1 & 3 | 4000-6000 |
| Between Terminals 1 & 2 (Vitara) |
| At Idle | 20 |
| At Wide Open Throttle | 6000 |
| Between Terminals 2 & 3 (Grand Vitara) |
| At Idle | 0 |
| At Wide Open Throttle | 4600 |
THROTTLE POSITION (TP) SENSOR RESISTANCE
| Application | PCM Connector/Terminal No. | Volts |
|---|
| Esteem & Swift |
| Throttle Closed | B/6 & Ground | 0.2-1.0 |
| Throttle Open | B/6 & Ground | 2.8-4.8 |
| Vitara 1.6L & 2.0L |
| Throttle Closed | C51-3-9 & Ground | 0.5-1.2 |
| Throttle Open | C51-3-9 & Ground | 3.4-4.7 |
| Grand Vitara 2.5L |
| Throttle Closed | B/12 & Ground | 0.35-0.65 |
| Throttle Open | B12 & Ground | 3.5-4.5 |
| (1) Ignition on, engine off. |
| (1) | Ignition on, engine off. |
THROTTLE POSITION (TP) SENSOR VOLTAGE (1)
| Application | Ohms |
|---|
| Esteem & Swift | (1) 300-450 |
| (1) With ohmmeter connected to vehicle speed sensor terminals, ohmmeter should alternate between zero ohms and infinity as output shaft revolves. |
| (1) | With ohmmeter connected to vehicle speed sensor terminals, ohmmeter should alternate between zero ohms and infinity as output shaft revolves. |
VEHICLE SPEED SENSOR (VSS) RESISTANCE
| Application | PCM Connector/Terminal No. | (1) Voltage |
|---|
| Vitara | C51-2-25 & Ground | 0-1 to 8-14 |
| Grand Vitara | B/1 and Ground | 0-1 to 8-14 |
| (1) With ignition on and right rear tire rotating while holding left rear tire stationary. |
| (1) | With ignition on and right rear tire rotating while holding left rear tire stationary. |
VEHICLE SPEED SENSOR (VSS) VOLTAGE (ON-VEHICLE)
