B1129 HONDA - Driver Side Door Lock Knob Switch Signal Error
B1129 HONDA Possible Causes
- Faulty Driver Side Door Lock Knob Switch
- Driver Side Door Lock Knob Switch harness is open or shorted
- Driver Side Door Lock Knob Switch circuit poor electrical connection
- Faulty Door Multiplex Control Unit
How do I fix code B1129 HONDA?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the B1129 HONDA code
Labor: 1.0The cost of diagnosing the B1129 HONDA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
B1129 HONDA DescriptionThe Door Multiplex Control Unit monitors the Driver Side Door Lock Knob Switch. The Door Multiplex Control Unit sets the OBDII code when the Driver Side Door Lock Knob Switch is not to factory specifications.
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