Checking the sensor

Checking components and connectors 

Check the connectors. Check for contact resistance. Check for oxidation. Check for loose connections.

Check the sensor in the seat. Take readings between:

• terminals #2 and #3 on connector B for the seat heating module (SHM). Check for an open-circuit
• terminal #2 on connector B and chassis ground. Check for a short-circuit to ground
• terminal #2 on connector B and terminal #4 on connector A. Check for a short-circuit to supply voltage.

Remedy as necessary.

Other information: 

• See Connecting the breakout box
• See Signal specification
• See Climate control, location of components
• See Seat heating module (SHM), replacing
• See Checking wiring and terminals

Refer to Verification