Circuit/System Testing

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Ignition ON, compass ON, verify that there is a compass reading on the display.
- If the display is blank, replace the ISRVM.
- If the display shows the letter C or CAL, perform the compass calibration procedure. Refer to Compass Calibration and Magnetic Variance .
Verify that the compass reading on the display is correct.
- If not correct, perform the compass magnetic variation adjustment procedure. Refer to Compass Calibration and Magnetic Variance .
If the display is still incorrect, replace the ISRVM.