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B2200 & B2600i

  1. Ensure fuse and wiring are okay. To test fuel gauge, remove fuel tank and disconnect fuel gauge sending unit connector.
  2. Connect Red wire lead of Checker (49-0839-285) to "Y" terminal (harness side) of sending unit connector. See Fig 1 . Connect checker Black wire lead to "B" terminal.
    Fig 1: Testing Fuel Gauge Using Checker (B2200 & B2600i)
    G90A01274Courtesy of MAZDA MOTORS CORP.
  3. Set checker to resistance values shown in FUEL GAUGE RESISTANCE  . Turn ignition switch to ON position and ensure needle position corresponds to resistance measurement. See Fig 2 .
  4. Allow 2 minutes for needle to stabilize. Allowable limit of needle deflection is twice width of needle.
  5. If gauge needle readings are as specified in FUEL GAUGE RESISTANCE table, replace sending unit. If gauge readings are not as specified, check wiring. If wiring is okay, replace gauge.
Fig 2: Identifying Fuel Gauge Needle Positions & Resistances
G64976Courtesy of MAZDA MOTORS CORP.
FUEL GAUGE RESISTANCE

Needle Position Ohms
Except Navajo
"F" (Full) 7
Half 32.5
"E" (Empty) 95
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