B3702 Buick Code - Intermittent Wiper Delay Input Circuit Low
Quick Answer
The intermittent switch in the windshield wiper washer switch is a voltage divider connected across the Body Control Module (BCM) inputs circuits windshield wiper switch signal circuit and windshield wiper switch low reference circuit. Common causes include Faulty Windshield Wiper Washer Switch, Windshield Wiper Washer Switch harness is open or shorted, Windshield Wiper Washer Switch 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
- B3702 Buick indicates Intermittent Wiper Delay Input Circuit Low.
- Common causes
- Common causes include Faulty Windshield Wiper Washer Switch, Windshield Wiper Washer Switch harness is open or shorted, Windshield Wiper Washer Switch 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 B3702 Buick Description
What are the Possible Causes of the DTC B3702 Buick?
- Faulty Windshield Wiper Washer Switch
- Windshield Wiper Washer Switch harness is open or shorted
- Windshield Wiper Washer Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3702 Buick?
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 B3702 Buick 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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Frequently Asked Questions about B3702 Buick Code
1. What does the OBDII code B3702 mean on a Buick?
The code B3702 indicates an issue with the intermittent wiper delay input circuit, specifically that the circuit is reading a low voltage or is malfunctioning.
2. What are the common symptoms of code B3702 in a Buick?
Symptoms may include wipers not functioning in intermittent mode, wipers operating at a single speed, or unresponsive wiper controls.
3. What causes the B3702 code to be triggered?
Common causes include a faulty wiper switch, damaged wiring or connectors in the wiper delay circuit, or a malfunctioning body control module (BCM).
4. Can I still drive my Buick with the B3702 code?
Yes, you can still drive your vehicle, but the wiper system may not function properly, which can be hazardous in rainy or snowy conditions.
5. How do I diagnose the B3702 code in a Buick?
Diagnosis typically involves inspecting the wiper switch, checking the wiring and connectors for damage or corrosion, and using a multimeter to test for proper voltage in the circuit.
6. How do I fix the B3702 code on a Buick?
Repairs may involve replacing the wiper switch, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the BCM.
7. How much does it cost to fix the B3702 code on a Buick?
Repair costs vary but typically range from $100 to $300, depending on whether the issue is with the switch, wiring, or BCM.
8. Can a bad BCM cause the B3702 code?
Yes, a malfunctioning body control module can occasionally cause this code, though it's less common than wiring or switch issues.
9. Will clearing the B3702 code fix the problem?
Clearing the code may temporarily reset the system, but the underlying issue must be addressed to prevent the code from returning.
10. Is the B3702 code unique to Buicks?
No, the B3702 code can appear on other GM vehicles as well, but the diagnosis and repair steps are generally similar.
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