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/InstallationFront Seat Cover Removal/Installation [Vehicles With Power Seat System]
WARNING:
Handling a front seat (with built-in side air bag) improperly can accidentally
operate (deploy) the air bag, which may seriously injure you. Read the service
warnings before handling a front seat (with built-in side air bag)..
CAUTION:
After removing a front seat ...
Oil Pressure Switch Removal
MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before removing the exhaust system.
1. Disconnect the negative battery cable.
2. Remove the aerodynamic under cover No.2..
3. Disconnect the connecto ...
Engine Coolant Temperature (ECT) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
When the engine is hot, it can badly burn. Turn off the engine and wait until
it is cool before removing the ECT sensor.
ECT Sensor No.1
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Drain the engine coolant..
4. Remove the battery and b ...