An arrow on the
instrument panel cluster
flashes in the direction of
the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow starts to flash to signal a lane change. Hold it there until the lane change is complete.
The lever returns to its starting position when it is released.
If after signaling a turn or a lane change the arrows flash rapidly or do not come on, a signal bulb could be burned out.
Have the bulbs replaced. If the bulb is not burned out, check the fuse. See Fuses and Circuit Breakers.
Chevrolet Cobalt Service & Repair Manual. Component Service
Engine Control Module (ECM)
1.
Retrieve percentage of remaining engine
oil life using a scan tool, then record remaining engine oil life.
2.
Remove ECM cover, then disconnect body
wiring harness electrical connector from ECM, Fig. ...