What does B0196 mean on a Chevy?

B0196. Front blower motor speed circuit voltage is high. The blower runs faster than commanded and the module sets a body warning. Applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

What causes B0196 on a Chevy?

Front blower speed signal circuit shorted to voltage Failed front blower motor control module holding the signal high Corroded or loose front blower motor connector Open in the front blower speed signal return Faulty output inside the HVAC control head

How do I fix B0196 on a Chevy?

Confirm the code with a scan tool and command a low front blower speed Measure the front blower speed signal voltage at the control module Inspect the front blower motor and control module connectors for corrosion Test the front blower speed signal circuit for a short to voltage Replace the front blower motor or control module only after the circuit tests pass, then clear the code and retest

Code

B0196

Front blower motor speed circuit voltage is high

Category: Body
Severity: Body Warning Light
Applies to: Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code
Related: No single generic twin. See OBD Codes List

What it means

B0196. Front blower motor speed circuit voltage is high. The blower runs faster than commanded and the module sets a body warning. This Chevy-enhanced code applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

Findings, check these first

Front blower speed signal circuit shorted to voltage
Failed front blower motor control module holding the signal high
Corroded or loose front blower motor connector
Open in the front blower speed signal return
Faulty output inside the HVAC control head

Standard procedure

Confirm the code with a scan tool and command a low front blower speed
Measure the front blower speed signal voltage at the control module
Inspect the front blower motor and control module connectors for corrosion
Test the front blower speed signal circuit for a short to voltage
Replace the front blower motor or control module only after the circuit tests pass, then clear the code and retest

Look up another code

Press / to jump to the box. Chevy-enhanced powertrain, body, chassis and network codes.

Sources and review

Review: checked against the recorded source material.

Code B0196 definition | OBDII.pro
live manufacturer definition (obdii.pro)
Supports: GM manufacturer meaning for B0196
Fetched directly. The GM entry is the brand-family meaning used here. This site is independent of engine-codes and autocodes.
B0196 CHEVROLET Front Blower Motor Speed Circuit High | Engine-Codes.com
archived reference page (engine-codes.com via Wayback Machine)
Supports: Chevrolet meaning and possible causes
Fetched directly. Model and year fitment remain curator claims.
B0196 CHEVROLET Front Blower Motor Speed Circuit High | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Chevrolet meaning and causes
Same Chevrolet text as the engine-codes page (both sites share one publisher).

Last updated 2026-10-10.

Report a correction for B0196. Include your vehicle, the issue and a source if you have one.