Circuit Operation
- Battery positive voltage is applied to the transfer shift lever switch (terminal 1) when the ignition switch is turned "ON."
- Battery positive voltage is applied to the transfer-ECU terminal 20, 21, 22, or 23 when the transfer shift lever is in the "2H," "4H," "4HLc" or "4LLc." The transfer-ECU judges that the transfer shift lever is in the "2H," "4H," "4HLc" or "4LLc" when the battery positive voltage is applied.