LH Turn

When the turn signal switch (combination switch) is moved to the L position, the BCM receives input requesting the left turn signals to flash. The BCM then supplies power

• to front turn signal lamp LH terminal 3
• to rear turn signal lamp LH (part of the rear combination lamp LH) terminal 3.

Ground is supplied to the front turn signal lamp LH terminal 2 through body grounds E15 and E24.

Ground is supplied to the rear turn signal lamp LH (part of the rear combination lamp) terminal 5 through body grounds B7 and B19.

The BCM also supplies ground to combination meter terminals 1 and 2 across the CAN communication lines. This input is processed by the central processing unit of the combination meter, which in turn supplies ground to the left turn signal indicator lamp.

With power and ground supplied, the BCM controls the flashing of the LH turn signal lamps.