On-Board Diagnostic (HVAC): Overview Mazda 3 BL

Scheme 137

Scheme 138

1. Connect the M-MDS to the DLC-2 connector.
2. Shine a fluorescent light directly onto the solar radiation sensor. NOTE: If natural sunlight is not shone on the solar radiation sensor, the climate control unit determines a malfunction and indicates DTC "B1260, B1261".
3. After the vehicle is identified, select the following items from the initial screen of the M-MDS. When using the IDS (laptop PC) Select the "Self Test". Select the "Modules". Select the "EATC". When using the PDS (Pocket PC) Select "Module Tests". Select the "EATC". Select the "Self Test".
4. Verify the DTC according to the directions on the screen. If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.
5. After completion of repairs, clear all DTCs stored in the climate control unit. (See «CLEARING DTC»(ref-345286-S13634324782009102000000) ).