Retrieving Diagnostic Trouble Codes

WARNING: This page is about a different car, the 2004 Mazda Tribute, 2003 Mazda Tribute, and 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.

Connect Worldwide Diagnostic System (WDS) or equivalent scan tool to the vehicle DLC-2 16-pin connector. Using WDS, perform Powertrain Control Module (PCM) self-test. If P1246: SYSTEM VOLTAGE FAILURE is displayed, see DIAGNOSTIC TROUBLE CODE DEFINITIONS (2002 models), DIAGNOSTIC TROUBLE CODE DEFINITIONS (2003 models) or DIAGNOSTIC TROUBLE CODE DEFINITIONS (2004 models) in SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTCs are present, perform appropriate test under SYSTEM TESTS or ON-VEHICLE TESTS .

DTC P1246 can be set by the loss of the communication lines, GEN COM Circuit and/or GEN MON circuit. However, the generator warning indicator light will not illuminate since the generator is self-regulating and will function normally.