DTC B2259: Notes

DTC B2259 DETECTION CONDITION POSSIBLE CAUSE

DTC B2259	Front wiper variable intermittent switch circuit failure Intermittent wiper circuit failure
DETECTION CONDITION	Input voltage from the windshield wiper and washer switch (INT volume or sensitivity adjustment volume) is excessively low or high Short to GND in wiring harness between PJB and windshield wiper and washer switch (INT)
POSSIBLE CAUSE	Open circuit in wiring harness between PJB terminal J-04 U and windshield wiper and washer switch terminal G Short to power supply in wiring harness between PJB terminal J-04 U and windshield wiper and washer switch terminal G Short to GND in wiring harness between PJB terminal J-04 U and windshield wiper and washer switch terminal G Short to GND in wiring harness between PJB terminal J-04 E and windshield wiper and washer switch terminal D Windshield wiper and washer switch malfunction PJB malfunction
Courtesy of MAZDA MOTORS CORP.