B1446 Code - Wiper Park Sense Circuit Failure
Quick Answer
The Body Control Module (BCM) monitors the Wiper Park Sense. Common causes include Faulty Wiper Park Sense, Wiper Park Sense harness is open or shorted, Wiper Park Sense circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1446 indicates Wiper Park Sense Circuit Failure.
- Common causes
- Common causes include Faulty Wiper Park Sense, Wiper Park Sense harness is open or shorted, Wiper Park Sense circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1446 Description
What are the Possible Causes of the DTC B1446?
- Faulty Wiper Park Sense
- Wiper Park Sense harness is open or shorted
- Wiper Park Sense circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1446?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1446 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B1446 Buick — Replace Backup Power Source
- B1446 Cadillac — Replace Backup Power Source
- B1446 Chevrolet — Replace Backup Power Source
- B1446 GMC — Replace Backup Power Source
- B1446 Lexus — Air Mix Damper Control Servo Motor Circuit Driver Side
- B1446 Pontiac — Replace Backup Power Source
- B1446 Saturn — Replace Backup Power Source
- B1446 Scion — Air Mix Damper Control Servo Motor Circuit Driver Side
- B1446 Toyota — Air Mix Damper Control Servo Motor Circuit Driver Side
Frequently Asked Questions about B1446 Code
1. What are the common symptoms of OBDII code B1446 (Wiper Park Sense Circuit Failure)?
The common symptoms of B1446 include malfunctioning windshield wipers, erratic wiper behavior, or wipers getting stuck in one position.
2. What are the possible causes of OBDII code B1446 (Wiper Park Sense Circuit Failure)?
Possible causes of B1446 include a faulty wiper motor, damaged wiper linkage, faulty wiper park sense circuit, or issues with the wiper control module.
3. How can I diagnose OBDII code B1446 (Wiper Park Sense Circuit Failure)?
Diagnosing B1446 involves checking the wiper motor and linkage for proper function, testing the wiper park sense circuit for continuity, and scanning the vehicle's computer for error codes.
4. Can I still drive my vehicle with OBDII code B1446 (Wiper Park Sense Circuit Failure)?
It is not recommended to drive your vehicle with B1446 unresolved, as malfunctioning windshield wipers can impair your visibility and compromise driving safety.
5. How can I repair OBDII code B1446 (Wiper Park Sense Circuit Failure) at home?
You can attempt to repair B1446 at home by checking and cleaning the wiper motor connections, inspecting the wiper linkage for damage, and testing the wiper park sense circuit with a multimeter.
6. Is it necessary to replace the entire wiper motor if OBDII code B1446 (Wiper Park Sense Circuit Failure) is triggered?
In some cases, replacing the wiper motor may be necessary to resolve B1446, especially if the motor is found to be faulty or causing issues with the wiper park sense circuit.
7. Should I reset the OBDII code B1446 (Wiper Park Sense Circuit Failure) after making repairs?
Yes, after repairing the underlying issue causing B1446, it is recommended to reset the trouble code using an OBDII scanner to clear the error and see if the problem has been resolved.
8. Can extreme weather conditions contribute to triggering OBDII code B1446 (Wiper Park Sense Circuit Failure)?
Yes, extreme weather conditions such as heavy rain, snow, or extreme cold can sometimes exacerbate existing issues with the wiper system, leading to the triggering of B1446.
9. What should I do if OBDII code B1446 (Wiper Park Sense Circuit Failure) keeps coming back after repairs?
If B1446 keeps reoccurring even after repairs, it may indicate a persistent underlying issue with the wiper system that requires further inspection or professional diagnosis.
10. Is it safe to continue driving if OBDII code B1446 (Wiper Park Sense Circuit Failure) temporarily goes away on its own?
While the code may disappear temporarily, it is not advisable to continue driving without addressing the underlying cause of B1446, as it can lead to potential wiper system failure while on the road.
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