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Seat Heaters Acura MDX I

Seats 8 illustrations ~336 words

Scheme 66

Scheme 66: Component Location Index
Scheme 66: Component Location Index

The illustration shows '03 model.

Scheme 67

Scheme 67: Circuit Diagram
Scheme 67: Circuit Diagram

Driver's Seat

Note. When the seat heater is set on HI, the thermo switch opens at a specified temperature.

Scheme 68

Scheme 68: Driver's Seat
Scheme 68: Driver's Seat
  1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/mdx/i-2000-2006/remont/seats/#seats__front-seat-removalinstallation) ).
  2. Disconnect the 4P connector (A) and 2P connector (B) from the seat heater.
  3. Seat Cushion Heater: Check for continuity between the A1 and A2 terminals, and A1 and A3 terminals of the 4P connector A. There should be continuity.
  4. Seat-back Heater: Check for continuity between the B1 and B2 terminals of the 2P connector B. There should be continuity.
  5. If the continuity is not as specified, replace the seat heater.
  6. If only the seat-back heater fails to warm-up, check for on open in the YEL wire of the driver's seat wire harness.

Front Passenger's Seat

Note. When the seat heater is set on HI, the thermo switch opens at a specified temperature.

Scheme 69

Scheme 69: Front Passenger's Seat
Scheme 69: Front Passenger's Seat
  1. Remove the passenger's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/mdx/i-2000-2006/remont/seats/#seats__front-seat-removalinstallation) ).
  2. Disconnect the 4P connector (A) from the seat heater.
  3. Check for continuity between the No. 1 and No. 2 terminals, and No. 2 and No. 3 terminals of the 4P connector. There should be continuity.
  4. If the continuity is not as specified, replace the seat heater.

Scheme 70

Scheme 70: '03 model
Scheme 70: '03 model

Scheme 71

Scheme 71
Scheme 71
  1. Remove the center console (see «CENTER CONSOLE REMOVAL/INSTALLATION»(/acura/mdx/i-2000-2006/remont/gauges-instrument-panels/#consoles__center-console-removalinstallation) ).
  2. Disconnect the 6P connector (A) from the seat heater switch (B), and remove the switch.
  3. Check for continuity between the terminal in each switch position according to (Scheme 71).
  4. If the continuity is not as specified, replace the illumination bulbs (C) or the switch.

Scheme 72

Scheme 72: '04-06 models
Scheme 72: '04-06 models

Scheme 73

Scheme 73
Scheme 73
  1. Remove the center console (see «CENTER CONSOLE REMOVAL/INSTALLATION»(/acura/mdx/i-2000-2006/remont/gauges-instrument-panels/#consoles__center-console-removalinstallation) ).
  2. Disconnect the 6P connector from the seat heater switch (A).
  3. Remove the screws and seat heater switch.
  4. Check for continuity between the terminal in each switch position according to (Scheme 73).
  5. If the continuity is not as specified, replace the illumination bulbs (B) or the switch.

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