B116816 Steering Angle Sensor Voltage Too Low: Causes, Symptoms and Fixes

Interpreting the B116816 Steering Angle Sensor Voltage Too Low Error Code: Causes, Symptoms, Diagnosis, Repair, and Prevention for Contemporary Cars

B116816 Steering angle sensor voltage low

BB116816 Steering Angle Sensor Voltage Low: Full Diagnosis Guide

Today’s cars depend on dozens of sensors to drive safely and efficiently. One of the most important is the Steering Angle Sensor (SAS) which allows systems such as Electronic Stability Control (ESC), Traction Control and Advanced Driver Assistance Systems (ADAS) to know where the steering wheel is.
B116816 Steering Angle Sensor Voltage Too Low

The B116816 Steering Angle Sensor Voltage Too Low fault code means that the control module has detected a voltage signal from the steering angle sensor that is less than the manufacturer’s specified range.

If this fault is ignored, it can affect the vehicle’s stability systems and possibly affect driving safety.

What is B116816 Steering Angle Sensor Voltage Too Low?

DTC B116816 Steering angle sensor voltage signal is less than the acceptable operating threshold.

The steering angle sensor measures constantly:

• Steering wheel position
• Rotation angle of the steering wheel
• Steering input direction
• Steering velocity

This information is sent to various control modules that are responsible for:

• Electronic Stability Control (ESC)
• Electric Power Steering (EPS)
• ABS (Anti-lock Braking System)
• Traction Control System (TCS)

Low voltage signal present may result in inaccurate steering data being supplied to these systems.

What causes B116816?

The B116816 fault code can be set for a few different reasons.

1. Steering Angle Sensor (Damaged)

Incorrect voltage readings can be caused by the internal failure of the steering angle sensor.

2. Wiring harness damage (B116816 Steering Angle Sensor Voltage Too Low)

Broken, corroded or shorted wires between the sensor and the control module may result in a lower signal voltage.

3. Poor Electrical Connections (B116816 Steering Angle Sensor Voltage Too Low)

Poor electrical connections can cause resistance and voltage drops.

4. Vehicle’s Low Battery Voltage (B116816 Steering Angle Sensor Voltage Too Low)

The sensor operation may be affected by a weak battery and cause faults related to low voltage.

5. Clockspring damage (B116816 Steering Angle Sensor Voltage Too Low)

The clock spring behind the steering wheel can be damaged and break communication between sensors .

6. Control Module Problems (B116816 Steering Angle Sensor Voltage Too Low)

In rare cases a malfunction of an ABS, EPS, or body control module may misinterpret sensor voltage.

B116816 Steering Angle Sensor Voltage Too LowTrouble Codes

Drivers may experience one or more of the following symptoms:

Positive Signs (B116816 Steering Angle Sensor Voltage Too Low)

✔ Early fault detection before major system failure

✔ Numerous instances of vehicle still drivable

✔Modern scanning tools mean easier diagnoses

Negative Symptoms (B116816 Steering Angle Sensor Voltage Too Low)

❌ ABS warning light on

❌ Traction control light illuminated

❌ Indicator light for active stability control

❌ Limited power steering assistance

❌ May not work ADAS functions

❌ Lane Keep Assist off

❌ Electronic Power Steering light on

❌ Vehicle stability is compromised in emergency maneuvers

How Bad Is Code B116816?

Severity:Medium-High (B116816 Steering Angle Sensor Voltage Too Low)

The vehicle may still be driven normally, but critical safety systems may be partially disabled.

You may experience: If you drive with this code for a long time,

• Decreased steering assist
• Incorrect stability control interventions
• More accidents in slippery conditions .
• Stored additional fault codes

It is advisable to seek professional diagnosis as soon as possible.

B116816 Diagnostic Procedure

Follow these diagnostic steps in order.

Step 1: Check the error code (B116816 Steering Angle Sensor Voltage Too Low)

Plug in a professional OBD-II scanner and check:

• B116816 is up and running.
• No other codes for the steering exist

Step 2: Check voltage of battery (B116816 Steering Angle Sensor Voltage Too Low)

measure battery voltage

• Engine Off: 12.4 V – 12.8 V
• With Engine Running: 13.5V – 14.8V

False faults in the steering sensor can be due to low voltage.

Step 3: Check Wire (B116816 Steering Angle Sensor Voltage Too Low)

Look For:

• Frayed cables
• Corrosion
• Water infiltration
• Pin damage
• slop in the connector

Replace damaged wiring and repair before replacing components.

Step 4: Inspect Clock Spring (B116816 Steering Angle Sensor Voltage Too Low)

Watch for signs of:

• Steering Wheel Repair History:
• Air bag work
• Steering wheel controls (intermittent)

Sensor signals may be interrupted by a damaged clock spring.

5. Read live data (B116816 Steering Angle Sensor Voltage Too Low)

Steering angle sensor values monitoring:

• Value of steering angle
• voltage measurements
• Communication status of sensor

Abnormal readings are sensor or wiring problems.

Step 6: Adjust Steering Angle (B116816 Steering Angle Sensor Voltage Too Low)

Many vehicles need to be calibrated after:

• Alignment of wheels
• Replace steering rack
• Battery disconnect
• Sensor replacement

An incorrect calibration can trigger B116816.

B116816 Steering Angle Sensor Voltage Too Low – Fix

Depending on the diagnosis, more than one repair may be needed.

Solution 1: Refill or Change Battery

If the system voltage is below specification, first address battery issues.

Solution 2: Fixing Damaged Wiring

Fix:

• Open circuit
• Short-circuits
• Connector corroded
• Loose connections

Solution 3: Change Faulty Clock Spring

Install a new clock spring if the continuity tests fail.

Solution 4: Reset Steering Angle Sensor

Use diagnostic software approved by the manufacturer.

Solution 5: Change steering angle sensor

In case the sensor itself is bad it may need replacement.

Solution 6: Replace or update control module

Occasionally, modules may need to be programmed or replaced.

Estimated Repair Charge

Repair Kind	Cost estimate
Change Batteries	$80 – $250
Electrical Services	$50 – $300
Calibration of Steering Angle Sensor	$50 – $150
Clock Spring Change	$150 – $500
Replace Steering Angle Sensor	$200 – $800
Module Repair / Programming	$150 – $1000

Costs vary by make and model of vehicle and location.

Can You Drive With B116816

You could possibly:

✔ Short distance drives

✔ Get to a repair shop safely

✔ Drive the vehicle under normal conditions

What not to do:

❌Speeding

❌ Roads Wet or Icy

❌ Dependence on stability control systems

❌ Driving long distances with warning lights on

Prevention Suggestions

Future risk reduction for steering angle sensor faults:

• Keep your battery healthy
• Check electrical plugs regularly
• Stop water getting in around steering components
• Steering calibration after repairs
• Use quality replacement parts
• Take care of warning lights right away

Frequently Asked Questions (FAQs)

B116816 Causes of too low voltage of the steering angle sensor

Some of the more common causes are a bad steering angle sensor, damaged wiring, low battery voltage, a bad clock spring or calibration problems.

Is B116816 clear?

In some cases the code will clear itself after fixing the voltage issues, but most vehicles will require a diagnostic scanner to clear the fault.

Is B116816 a dangerous product?

It can . . . because it can disable important safety systems like ESC, ABS and traction control.

Can wheel alignment cause B116816?

Yes. You might need to recalibrate the steering angle sensor after a wheel alignment or steering repair.

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