Testing (929)

To access the self diagnostic codes, connect a voltmeter between the test connector and ground. The diagnostic codes are displayed as voltage output pulses. Start the engine. Drive vehicle straight-ahead at a speed greater than 6 MPH. Record diagnostic codes and compare to 929 DIAGNOSTIC CHART. See Fig 1 .

Fig 1: 929 Diagnostic Chart

Courtesy of MAZDA MOTORS CORP.

Fig 2: Circuit Wiring Diagram (929)

Fig 3: Circuit Wiring Diagram (MX-6 & 626)