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Home >> Mazda >> 2003 >> B2300 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Power Windows) >> Component Tests >> Relays >> Power Window Relay
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Power Window Relay

WARNING: This page is about a different car, the 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove power window relay. Measure resistance between terminal No. 85 and all other terminals of relay. See Fig 2. If all resistance readings are greater than 5 ohms, go to next step. If any resistance reading is 5 ohms or less, replace power window relay.
  2. Using two fused jumper wires, connect positive battery voltage to relay terminals No. 86 and No. 30. Measure voltage at terminal No. 87a. If battery voltage exists, go to next step. If battery voltage does not exist, replace power window relay.
  3. With both jumper wires connected as in step 2)  , connect another jumper wire between ground and relay terminal No. 85. Measure voltage at terminal No. 87. If battery voltage does not exist, replace power window relay. If battery voltage exists, power window relay is okay at this time.
Fig 1: Identifying One-Touch Down Relay Terminals
G97E28187Courtesy of MAZDA MOTORS CORP.
Fig 2: Identifying Power Window Relay Terminals
G97D28186Courtesy of MAZDA MOTORS CORP.
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