Resistance Inspection

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Handling the driver-side air bag module improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings and cautions before handling the air bag module. (See AIR BAG SYSTEM SERVICE WARNINGS [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See AIR BAG SYSTEM SERVICE CAUTIONS [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) (See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)

Switch the ignition off.
Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE REMOVAL [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
Remove the steering wheel. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
Measure the resistance between cruise control switches 3E and 3A under the following conditions:
- Resistance with MRCC OFF switch/CANCEL switch pressed and held
  - 0 ohms
  Fig 1: Locating Clock Spring Connector And Part Wiring Harness Side
  Courtesy of MAZDA MOTORS CORP.
- Resistance with SET (-) switch pressed and held
  - 7-85.3 ohms
  Fig 2: Resistance With Set (+) Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with SET (+) switch pressed and held
  - 187.7-191.3 ohms
  Fig 3: Resistance With Set (+) Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with MRCC ON switch/MODE switch pressed and held
  - - 323.3-329.7 ohms
  Fig 4: Resistance With Mrcc ON Switch/Mode Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with RESUME switch pressed and held
  - 501.5-511.5 ohms
  Fig 5: Resistance With Resume Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with DISTANCE (+) switch pressed and held
  - 753.9-769.1 ohms
  Fig 6: Resistance With Distance (+) Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with DISTANCE (-) switch pressed and held
  - 1, 140.0-1, 163.0 ohms
  Fig 7: Resistance With Distance (-) Switch Pressed And Held
  Courtesy of MAZDA MOTORS CORP.
- Resistance with any switches not pressed
  - 3, 268.5-3, 344.5 ohms
  Fig 8: Resistance With Any Switches Not Pressed
  Courtesy of MAZDA MOTORS CORP.
- If not within the specification, replace the cruise control switch.