Fuel gauge sender unit (sub)
- Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
- Remove the rear seat cushion. (See REAR SEAT CUSHION REMOVAL/INSTALLATION .)
- Remove the set plate.
- Remove the fuel gauge sender unit. (See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [AWD] .)
- Verify that the resistance at fuel gauge sender unit (sub) terminals A and C is as follows according to the height of the float.
Resistance when float is in the highest position
- 18.5-21.5 ohms
Resistance when float is in the lowest position
- 197-203 ohms
Fig 1: Checking Resistance At Fuel Gauge Sender Unit (SUB) Terminals A And C According To Height Of FloatCourtesy of MAZDA MOTORS CORP.
- If the resistance is not within the specification, replace the fuel gauge sender unit (sub). (See FUEL GAUGE SENDER UNIT REMOVAL/INSTALLATION [AWD] .)