AutoCodes – Generic – B210D

B210D Code - Starter Relay ON

Quick Answer

Located in the Intelligent Power Distribution Module (IPDM) Engine Room (E/R), it runs the starter motor. Common causes include Faulty Intelligent Power Distribution Module (IPDM), Intelligent Power Distribution Module (IPDM) harness is open or shorted, Intelligent Power Distribution Module (IPDM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B210D indicates Starter Relay ON.
Common causes: Common causes include Faulty Intelligent Power Distribution Module (IPDM), Intelligent Power Distribution Module (IPDM) harness is open or shorted, Intelligent Power Distribution Module (IPDM) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 9,426

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B210D Description

Located in the Intelligent Power Distribution Module (IPDM) Engine Room (E/R), it runs the starter motor. The starter relay is turned ON by the Body Control Module (BCM) when the ignition switch is in START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN communication. The OBDII code sets when the IPDM E/R detects that the relay is stuck at ON position even if the followings condition are met for about 1 second: Starter control relay ON/OFF signal from BCM and Clutch interlock or shift park neutral position (PNP) switch input.

OBDII Code B210D - Starter Relay ON - AutoCodes.com — B210D Code - Starter Relay ON

What does this mean?

What are the Possible Causes of the DTC B210D?

Faulty Intelligent Power Distribution Module (IPDM)
Intelligent Power Distribution Module (IPDM) harness is open or shorted
Intelligent Power Distribution Module (IPDM) circuit poor electrical connection

How to Fix the DTC B210D?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B210D code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B210D code?

Need more information on how to fix the B210D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B210D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B210D Chrysler — Battery Voltage Low
B210D Dodge — Battery Voltage Low
B210D Infiniti — Starter Relay ON
B210D Jeep — Battery Voltage Low
B210D Nissan — Starter Relay ON
B210D RAM — Battery Voltage Low

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B210D Code

1. What does OBDII code B210D mean?

Code B210D indicates an issue with the starter relay circuit, typically that the relay is stuck in the "ON" position when it shouldn't be.

2. What are the common symptoms of code B210D?

Symptoms include the starter motor continuing to run after the engine is started, difficulty starting the vehicle, or a drained battery due to excessive starter operation.

3. What causes the B210D code to appear?

Common causes include a faulty starter relay, shorted or damaged wiring in the starter circuit, a malfunctioning ignition switch, or a problem with the engine control module (ECM).

4. Can I drive my car with a B210D code?

Itâ€™s not recommended to drive with this code active, as the continuous operation of the starter motor can lead to overheating, battery drain, or damage to the starter system.

5. How is the B210D code diagnosed?

A technician will inspect the starter relay, wiring, and connections for damage or corrosion, and may use a multimeter to test the relay and circuit for proper operation.

6. How do I fix the B210D code?

Repairs may include replacing a faulty starter relay, repairing or replacing damaged wiring, cleaning corroded connections, or addressing any issues with the ignition switch or ECM.

7. Can a weak battery cause a B210D code?

While a weak battery is unlikely to directly cause this code, it may exacerbate starting issues. Ensure the battery is fully charged and in good condition before further troubleshooting.

8. How much does it cost to repair a B210D code?

Repair costs vary depending on the issue but typically range from $50 for a simple relay replacement to $200 or more if wiring repairs or ignition switch replacements are needed.

9. Can I fix the B210D code myself?

If youâ€™re comfortable with basic electrical diagnostics, you can inspect and replace the starter relay or check the wiring. However, more complex issues may require professional assistance.

10. Is the B210D code related to the starter motor itself?

Indirectly, yes. While the code points to the relay and its circuit, issues with the starter motor can sometimes cause similar symptoms and should be checked if other components are functioning correctly.