Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Calibration Test
CHEC-1 will be displayed in odometer window. Each of instrument cluster gauges will move sequentially through each calibration point. See GAUGE CALIBRATIONS table. If gauge needle is not calibrated properly, a problem in instrument cluster exists. See appropriate BODY CONTROL COMPUTER TESTS article for gauge recalibration procedures.
| Gauge Sequence | Calibration Point | |
|---|---|---|
| Speedometer | ||
| 1 | 0 MPH | |
| 2 | 20 MPH | |
| 3 | 55 MPH | |
| 4 | 75 MPH | |
| Tachometer | ||
| 1 | 0 RPM | |
| 2 | 1000 RPM | |
| 3 | 3000 RPM | |
| 4 | 6000 RPM | |
| Fuel Gauge | ||
| 1 | Empty | |
| 2 | 1/8 | |
| 3 | 1/4 | |
| 4 | Full | |
| Temperature Gauge | ||
| 1 | Cold | |
| 2 | Low Normal | |
| 3 | High Normal | |
| 4 | Hot | |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.