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C0662 Chassis

Left Rear Wheel Speed Sensor B Circuit High

Left Rear Wheel Speed Sensor B Circuit High: the signal voltage is above the expected range. Wheel-speed signals feed ABS, ESC, traction control and the speedometer.

Affected components

  • Lr wss b

Common causes

  • High likelihood: Signal wire shorted to battery
  • Low likelihood: Connector pins corroded - high contact resistance
  • Low likelihood: Supply wire pinched against B+ source

Possible symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • Reduced-power or limp mode may occur

Related codes

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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