Dodge P162B: Supercharger Bypass Valve Actuator Control System - Temporary PWM/RPM Max Exceeded

Is your scanner showing Dodge P162B?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

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Dodge P162B: Supercharger Bypass Valve Actuator Control System - Temporary PWM/RPM Max Exceeded

OVERVIEW

Severity

Medium

DIY Difficulty Level

Intermediate

Repair Cost

$300-$400

Can I Still Drive?

Yes (Short-term only)

What Does The Dodge P162B Code Mean?

The Supercharger boost pressure is managed by the use of a Supercharger Bypass (SCB) Valve. The PCM can vary the position of the SCB Valve to control the amount of boost. The SCB system uses two Position Sensors to monitor the SCB blade position. Position Sensors are located within the SCB Valve assembly. Each sensor has its own Signal circuit.

Both sensors share a 5-Volt reference circuit (Supply) and a low reference circuit (Sensor Return). The Powertrain Control Module (PCM) monitors the SCB Valve Sensor data. Each Signal circuit provides the PCM with a signal voltage proportional to SCB blade movement. The PCM monitors the data to verify that the indicated SCB position is correct.

What Are The Potential Causes Of The Dodge P162B Code?

Intermittent loss of connection at the supercharger bypass valve harness connector
Coking or debris blocking the supercharger bypass valve plate
Supercharger bypass valve plate binding inside the bore
Supercharger bypass valve
Powertrain control module (PCM)