Fix P2162: STEP-BY-STEP diagnostic GUIDE!

The P2162: Vehicle Speed Sensor ‘A’/’B’ Correlation refers to a fault detected when the signals from vehicle speed sensor ‘A’ and vehicle speed sensor ‘B’ do not match as expected. This can be caused by faulty sensors, calibration issues, or mechanical problems affecting the performance of the sensors.

P2162 – Quick Overview

CodeInformation
MeaningP2162: Vehicle Speed Sensor ‘A’/’B’ Correlation
Is it serious?Yes, this can affect vehicle speed readings and impact performance and safety features.
Possible causes– Mismatch between signals from vehicle speed sensor ‘A’ and ‘B’
– Faulty sensors or calibration issues
– Mechanical issues affecting sensor performance
How to diagnose?– Compare the outputs from vehicle speed sensors ‘A’ and ‘B’
– Test both sensors for faults
– Inspect mechanical components and sensor calibration

P2162 Meaning

The P2162: Vehicle Speed Sensor ‘A’/’B’ Correlation code indicates that the vehicle’s engine control module (ECM) has detected a discrepancy between the readings from vehicle speed sensor ‘A’ and sensor ‘B’. These sensors are used to monitor vehicle speed, and a mismatch can cause issues with vehicle performance, such as erratic shifting, improper speedometer function, or impacts to traction control or stability systems.

Step-by-step diagnostic guide

ActionDescriptionTools Needed
Check for Other CodesUse an OBD-II scanner to check for any other related codes that may provide more insight into the issue.OBD-II Scanner
Compare Sensor OutputsUse diagnostic software to compare the output signals from vehicle speed sensor ‘A’ and vehicle speed sensor ‘B’. Inconsistencies between the two indicate a correlation issue.Diagnostic Software, OBD-II Scanner
Inspect and Test SensorsInspect both sensors visually for damage or wear, and use a multimeter to test each sensor for proper functionality.Multimeter, Safety Gloves
Check Mechanical ComponentsInspect any mechanical components that could be affecting the sensors, such as transmission components or sensor mounting.Flashlight, Wrenches
Verify Sensor CalibrationCheck the calibration of both vehicle speed sensors and ensure they are working within manufacturer specifications. Recalibrate if needed.Calibration Tool (if needed)
Repair or Replace Faulty ComponentsIf you find any faulty wiring, sensors, or mechanical components, repair or replace them as needed to resolve the issue.Replacement Parts, Tools
Clear the Code and Test DriveClear the P2162 code using an OBD-II scanner and test drive the vehicle to ensure that the issue is resolved.OBD-II Scanner
Recheck for CodesAfter the test drive, re-scan the vehicle to ensure that the P2162 code does not return.OBD-II Scanner
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