AutoCodes – Pontiac – B2588 Pontiac

B2588 Pontiac Code - Auto Park Lamp Control Relay Control Circuit Is Shorted To Voltage

Quick Answer

The Body Control Module (BCM) turns on the Auto Park Lamp Control Relay when the ambient light sensor senses a dark condition. Common causes include Faulty Auto Park Lamp Control Relay, Auto Park Lamp Control Relay harness is open or shorted, Auto Park Lamp Control Relay 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: B2588 Pontiac indicates Auto Park Lamp Control Relay Control Circuit Is Shorted To Voltage.
Common causes: Common causes include Faulty Auto Park Lamp Control Relay, Auto Park Lamp Control Relay harness is open or shorted, Auto Park Lamp Control Relay 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 1,096

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 Jan 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2588 Pontiac Description

The Body Control Module (BCM) turns on the Auto Park Lamp Control Relay when the ambient light sensor senses a dark condition. Battery positive voltage is supplied to the auto park lamp control relay at all times through the PARK LPS fuse. The BCM grounds the Auto Park Lamp Control Relay control circuit in order to activate the relay.

OBDII Code B2588 Pontiac - Auto Park Lamp Control Relay Control Circuit Is Shorted To Voltage - AutoCodes.com — B2588 Pontiac Code - Auto Park Lamp Control Relay Control Circuit Is Shorted To Voltage

What does this mean?

What are the Possible Causes of the DTC B2588 Pontiac?

Faulty Auto Park Lamp Control Relay
Auto Park Lamp Control Relay harness is open or shorted
Auto Park Lamp Control Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2588 Pontiac?

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 B2588 Pontiac 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.

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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 B2588 Pontiac Code

1. What does OBDII code B2588 mean on a Pontiac?

Code B2588 indicates that the Auto Park Lamp Control Relay Control Circuit is shorted to voltage, suggesting an electrical issue in the circuit responsible for controlling the parking lights.

2. What are the common symptoms of code B2588?

Symptoms may include parking lamps staying on continuously, flickering, or failing to turn on, as well as potential battery drain due to the lights staying on.

3. What causes code B2588 to appear?

The code is typically caused by a short circuit in the wiring, a faulty auto park lamp control relay, a damaged switch, or corroded electrical connectors.

4. How can I diagnose code B2588?

Start by inspecting the wiring and connectors for damage or corrosion, testing the auto park lamp control relay for proper operation, and checking for any short circuits in the system.

5. Can a faulty relay cause code B2588?

Yes, a faulty auto park lamp control relay can cause this code by failing to properly control the parking light circuit.

6. Is code B2588 likely to cause battery drain?

Yes, if the parking lamps stay on due to the short circuit, it can lead to battery drain over time.

7. How do I fix code B2588 on my Pontiac?

Repairs may include replacing damaged wiring, cleaning or replacing corroded connectors, or replacing a faulty auto park lamp control relay.

8. Can I drive my Pontiac with code B2588 active?

While the car may still be drivable, it's important to address the issue promptly to avoid battery drain or further electrical damage.

9. What tools do I need to troubleshoot code B2588?

You'll need a multimeter to check for short circuits and voltage, a scan tool for clearing the code, and possibly a wiring diagram for the parking light circuit.

10. Is it expensive to repair code B2588?

The repair cost depends on the root cause. Replacing a relay or repairing wiring is generally affordable, but labor costs may add up if extensive diagnostics are required.