OBD Guide
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B3702

Intermittent Wiper Delay Input Circuit Low

B3702 is an OBD-II diagnostic trouble code meaning: Intermittent Wiper Delay Input Circuit Low. Common causes: open or short circuit in wiring harness, malfunction of the windshield wiper mode switch. Estimated repair cost: $22–111.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Incorrect operation of intermittent wipers
  • The wipers only work in constant mode
  • Random on/off wipers

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the windshield wiper mode switch
  • Poor contact in connectors
  • Contact corrosion
  • Malfunction of the windshield wiper control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the wiper mode switch
  3. Clean contacts in connectors
  4. Check the operation of the windshield wiper control unit
  5. Replace faulty components

Related codes

B3701B3703B3704

Error B3702 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the B3702 code mean?

B3702 is an OBD-II diagnostic trouble code that indicates: Intermittent Wiper Delay Input Circuit Low

What causes a B3702 error code?

The most common causes of B3702 include: Open or short circuit in wiring harness; Malfunction of the windshield wiper mode switch; Poor contact in connectors; Contact corrosion.

How do I fix a B3702 diagnostic trouble code?

To fix B3702: Check wiring harness for damage. Check the wiper mode switch. Clean contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3702?

Limited driving only, diagnose soon

How much does it cost to fix B3702?

The estimated repair cost for B3702 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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