1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Inspect for resistance and continuity between the seat warmer switch terminals using a tester.

If not as specified, replace the seat warmer switch.
Seat Track Position Sensor Removal/Installation [Two Step Deployment Control
System]
Seat Warmer Switch Removal/InstallationFlashing the Headlights
To flash the headlights, pull the lever fully
towards you (the headlight switch does not
need to be on).
The headlight high-beam indicator light
in the instrument cluster illuminates
simultaneously. The lever will return to the
normal position when released.
...
Front Bumper Disassembly/Assembly
Standard Type
Except SKYACTIV-G 2.0
1. Disassemble in the order indicated in the table.
1
Screw A
2
Guard cover
3
Screw B
4
Fastener C
5
Intake air guide
...
Judder Upon Torque Converter Clutch (TCC) Operation [Fw6 A EL]
TROUBLESHOOTING ITEM
Judder upon torque converter clutch (TCC) operation
DESCRIPTION
Vehicle jolts when TCC is engaged.
POSSIBLE CAUSE
Signal malfunction
APP ...