Section 19 (Engine Controls - Sensor Operating Range Charts): Introduction
WARNING: This page is about a different car, the 2003 Isuzu Rodeo Sport, 2003 Isuzu Rodeo, 2003 Isuzu Axiom, and 2003 Isuzu Ascender. However, it is still accessible from the selected car via links, so may be relevant.
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a DTC, but it may cause driveability problems.
NOTE:
See appropriate SELF-DIAGNOSTICS article or SYSTEM & COMPONENT TESTING article for additional sensor testing procedures.
NOTE:
Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
ENGINE COOLANT TEMPERATURE & INTAKE AIR TEMPERATURE SENSOR RESISTANCE - Axiom, Rodeo, Rodeo Sport
| Temperature -°F (°C) | Ohms |
|---|---|
| 212 (100) | 177 |
| 176 (80) | 332 |
| 140 (60) | 667 |
| 113 (45) | 1188 |
| 95 (35) | 1802 |
| 77 (25) | 2796 |
| 59 (15) | 4450 |
| 41 (5) | 7280 |
| 23 (-5) | 12300 |
| 5 (-15) | 21450 |
| -22 (-30) | 52700 |
| -40 (-40) | 100700 |
ENGINE COOLANT TEMPERATURE & INTAKE AIR TEMPERATURE SENSOR RESISTANCE - Ascender
| Temperature -°F (°C) | Ohms |
|---|---|
| 302 (150) | 47 |
| 284 (140) | 60 |
| 266 (130) | 77 |
| 248 (120) | 100 |
| 230 (110) | 132 |
| 212 (100) | 177 |
| 194 (90) | 241 |
| 176 (80) | 332 |
| 158 (70) | 467 |
| 140 (60) | 667 |
| 122 (50) | 973 |
| 113 (45) | 1188 |
| 104 (40) | 1459 |
| 95 (35) | 1802 |
| 86 (30) | 2238 |
| 77 (25) | 2796 |
| 68 (20) | 3520 |
| 59 (15) | 4450 |
| 50 (10) | 5670 |
| 41 (5) | 7280 |
| 32 (0) | 9420 |
| 23 (-5) | 12300 |
| 14 (-10) | 16180 |
| 5 (-15) | 21450 |
| -4 (-20) | 28680 |
| -22 (-30) | 52700 |
| -40 (-40) | 100700 |
ACCELERATOR POSITION & THROTTLE POSITION SENSOR VALUES - Axiom
| Sensor | Specification | |
|---|---|---|
| Accelerator Position Sensor 1 | ||
| Closed Throttle | 9-17% | |
| Wide Open Throttle | 81-93% | |
| Accelerator Position Sensor 2 | ||
| Closed Throttle | 81-93% | |
| Wide Open Throttle | 9-17% | |
| Accelerator Position Sensor 3 | ||
| Closed Throttle | 81-93% | |
| Wide Open Throttle | 28-40% | |
| Throttle Position Sensor 1 | ||
| Closed Throttle | 6-12% | |
| Wide Open Throttle | 79-83% | |
| Throttle Position Sensor 2 | ||
| Closed Throttle | 88-94% | |
| Wide Open Throttle | 19-23% | |