Setting Magnetic Zone Variance

Variance is the difference between magnetic North and geographic North. For proper compass function, the correct variance zone must be set.

Refer to the ZONE VARIANCE MAP for the correct zone. See Fig 1. Follow these steps to check or change the variance zone:

Fig 1: Compass Zone Variance Map

• The ignition switch must be in the On position and the CMTC display must not be blank.
• Press and hold the STEP and US/M buttons until VAR is displayed. The CMTC will display the last variance zone stored in memory and the word VAR.
• Use the STEP button to select the proper variance zone number, 1 through 15.
• After selecting the proper zone number, simultaneously press the STEP and US/M buttons or wait approximately 15 seconds. The variance zone is then stored in the memory and the CMTC returns to normal operation.