Generators & Regulators: Diagnosis Mazda 6 GG

PRELIMINARY INSPECTION

Verify customer complaint by operating charging system. Visually inspect for obvious signs of mechanical and electrical damage. Inspect for blown fuses and damaged relays. For fuse and/or relay identification (Scheme 1)and (Scheme 2). Inspect for loose or corroded connections, damaged wiring harnesses and/or switches. Check for broken or partially broken wire inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If no fault is found, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM.

Scheme 1

Scheme 2

Using Scan Tool

1. Connect the Worldwide Diagnostic System (WDS) or equivalent scan tool to the vehicle DLC-2 16-pin connector located in the driver compartment. (Scheme 3)
2. Retrieve/clear the DTCs using the WDS. If any DTCs are retrieved, perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If no DTCs are present, perform appropriate test under «ON-VEHICLE TESTS»(ref-166828-S42562234412004092900000).

Scheme 3

BATTERY CONDITION TEST

Note. Failure to fully charge the battery before retesting may cause false readings.

1. Verify the battery condition using the Battery Analyzer.
2. If the meter reads GOOD BATTERY, return the battery to service.
3. If the meter reads GOOD-RECHARGE, charge the battery and return to service.
4. If the meter reads CHARGE & RETEST, fully charge the battery and retest.
5. If the meter reads REPLACE BATTERY, install a new battery.
6. If the meter reads BAD CELL-REPLACE, install a new battery.