Mazda 6 Service Manual: Dtc b2228, b2230, b2232, b2234

Dtc b1996, b1997, b1998, b1999

Dtc b2229, b2231, b2233, b2235

Other materials:

Mazda 6 Service Manual: Egr valve removal/installation
1. Disconnect the negative battery cable. 2. Disconnect the EGR valve connector. 3. Remove in the order indicated in the table. 4. Install in the reverse order of removal. Water Hose Removal Note Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT.) EGR Valve Removal Note 1. Re ...

Mazda 6 Service Manual: Heater core inspection
1. Remove the A/C unit. (See A/C UNIT REMOVAL/INSTALLATION.) 2. Remove the heater core from the A/C unit. 3. Inspect for cracks, damage, and coolant leakage. If any problems are found, replace the heater core. 4. Inspect for bent fins. If any are bent, use a flathead screwdriver to stra ...