DTC 18: Left Mirror Circuit: Description

Driver Seat Adjuster Memory Module (DSAMM) monitors voltage of left power mirror motor potentiometer circuits using terminals No. 10 (Gray/Green wire) and No. 11 (Gray wire) of DSAMM connector C2. Normal voltage should be between 0.14-4.67 volts. DTC 18 will set if a short to power, open or short to ground in any related circuit occurs, left power mirror potentiometer fails or DSAMM fails causing voltage to fall out of valid operating range. No driver warning will be displayed. DSAMM will store DTC 18 in memory. Automatic function of left power mirror will be blocked. Adjustment speed and end stops are no longer monitored and position cannot be set to memory. DTC 18 will clear when conditions for setting DTC no longer exist or is cleared using scan tool.