Manual Transmission Gear Learning Procedure

The transfer box control module contains an adaption that enables it to recognize which gear the driver has selected. The adaption has to be reset, by performing the gear learning procedure, if one of the following occurs:

• The transfer box control module is reprogrammed or replaced
• The manual transmission is replaced
• The gear position sensor is replaced

During the gear learning procedure the vehicle must be driven smoothly in all gears, with the clutch fully released in each gear, in a single drive cycle. The procedure can be performed with the transfer box in either high or low range.

Gear Learning Procedure

• If the gear learning procedure is to be performed because the manual transmission or the gear position sensor has been replaced, use T4 to set the gear adaption status to 0 in the transfer box control module.
• Start the vehicle.
• Drive in reverse gear and fully remove your foot from the clutch, drive in reverse with your foot off the clutch for 3 seconds and ensure that R is displayed in the instrument cluster.
• Drive in 1st gear and, when gear position 1 is displayed in the instrument cluster, change to the next gear. Continue driving, and changing up to the next gear once the current gear is displayed in the instrument cluster, until gear 6 is displayed in the instrument cluster, then stop the vehicle.
• Stop the engine, remove the ignition key and wait for a minimum of 60 seconds (for the transfer box control module to power down).
• Insert the ignition key and turn the ignition switch to position II (ignition).
• Select each gear in turn. If the appropriate gear position is displayed in the instrument cluster as soon as each gear is selected, the gear learning procedure has been successful. If the gear position is not displayed in the instrument cluster, the gear learning procedure has failed and must be repeated.
• NOTE: T4 can also be used to check if the gear learning procedure has been successful.