B1808 Short to Positive in Front Passenger Side Squib Circuit

OBD2 Code: B1808

Description: This code indicates a short to positive in the front passenger side airbag squib circuit, which is part of the vehicle’s Supplemental Restraint System (SRS).

Definition: The B1808 code is triggered when there is an electrical fault detected in the airbag system, specifically a short circuit to battery voltage on the passenger side airbag inflator circuit. This can prevent proper deployment of the airbag during a collision.

B1808: Short to Positive in Front Passenger Side Squib Circuit
Severity: Moderate

Common Causes

b1808 – Short to Positive in Front Passenger Side Squib Circuit

Common causes of this OBD2 code include:

• Faulty front passenger side airbag squib
• Short circuit in the wiring harness
• Faulty airbag control module
• Corroded or loose electrical connections

Common Misdiagnosis

OBD2 Code: B1808

Description: Short to Positive in Front Passenger Side Squib Circuit

Common Misdiagnosis: Replacing the airbag module without checking for wiring issues or connector problems.

Common Diagnostic Steps

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OBD2 Code: B1808

Description: Short to Positive in Front Passenger Side Squib Circuit

• Check the airbag system fuse and replace if blown.
• Inspect the wiring harness for any signs of damage, such as chafing or corrosion.
• Examine the connectors for proper engagement and any bent or damaged pins.
• Test the resistance of the front passenger side squib circuit using a multimeter to ensure it is within specifications.
• If equipped, use an OBD2 scanner to clear the code and see if it returns after performing repairs.
• If necessary, consult the vehicle’s service manual for specific diagnostic procedures related to this code.
• If all else fails, consider replacing the airbag control module or seeking professional assistance from a certified technician.