DTC B1A63:11, B1A63:13, B1A64:11, B1A64:13: Notes
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1A63, B1A63, B1A64, B1A64 DETECTION CONDITION AND POSSIBLE CAUSE
| DTC B1A63:11 |
Solar radiation sensor (RH) circuit short to ground |
| DTC B1A63:13 |
Solar radiation sensor (RH) circuit open |
| DTC B1A64:11 |
Solar radiation sensor (LH) circuit short to ground |
| DTC B1A64:13 |
Solar radiation sensor (LH) circuit open |
| POSSIBLE CAUSE |
- Light amount shone on the solar radiation sensor is insufficient (Circuit is normal)
- Solar radiation sensor malfunction
- Open circuit in wiring harness between climate control unit connector terminal 2D and solar radiation sensor connector terminal B
- Open circuit in wiring harness between climate control unit connector terminal 2F and solar radiation sensor connector terminal C
- Open circuit in wiring harness between climate control unit connector terminal 2L and solar radiation sensor connector terminal A
- Short to ground in wiring harness between climate control unit connector terminal 2D and evaporator temperature sensor connector terminal B
- Short to ground in wiring harness between climate control unit connector terminal 2F and evaporator temperature sensor connector terminal C
- Connector or terminal malfunction
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 Courtesy of MAZDA MOTORS CORP.
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