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System Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1989 Mazda MX-6, 1989 Mazda MPV, 1989 Mazda B2600i, 1989 Mazda B2200, and 1989 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
  1. Operate engine to warm temperature. Ensure air temperature is above 113°F (45°C). Shut engine off. Connect voltmeter to pressure regulator control solenoid valve (Blue/Black wire on B2600i & MPV, White/Red on MX-6 and 626, or Brown wire on 323). See Fig 1 .
  2. Start engine and note voltage. Voltage should be below 2 volts for 1-4 minutes after engine is started, then increase to approximately 12 volts after 1-4 minutes.
Fig 1: Connecting Voltmeter On Regulator Solenoid Valve
G117786Courtesy of MAZDA MOTORS CORP.
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