AutoCodes – Cadillac – P1B83 Cadillac

P1B83 Cadillac Code - Hybrid/Electric Vehicle Battery 53 Circuit High Voltage

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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: P1B83 Cadillac indicates Hybrid/Electric Vehicle Battery 53 Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
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 814

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 Mar 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B83 Cadillac Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1B83 Cadillac - Hybrid/Electric Vehicle Battery 53 Circuit High Voltage - AutoCodes.com — P1B83 Cadillac Code - Hybrid/Electric Vehicle Battery 53 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B83 Cadillac?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1B83 Cadillac?

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 P1B83 Cadillac 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 P1B83 Cadillac Code

1. What does the OBDII code P1B83 mean on a Cadillac?

The P1B83 code indicates a problem with the Hybrid/Electric Vehicle Battery 53 Circuit experiencing high voltage, typically pointing to an electrical issue within the battery pack or related components.

2. What are the common symptoms of a P1B83 code on a Cadillac?

Symptoms may include a check engine light or hybrid system warning, reduced vehicle performance, limited electric mode functionality, or issues with battery charging or discharging.

3. What causes the P1B83 code to appear on a Cadillac?

Common causes include damaged wiring or connectors, a malfunctioning hybrid battery module, a faulty voltage sensor, or issues with the battery control module.

4. Can I drive my Cadillac with a P1B83 code?

While the vehicle may still be drivable, operating it with this code can lead to further damage to the hybrid system, reduced efficiency, and potential safety risks. Itâ€™s recommended to address the issue promptly.

5. How is the P1B83 code diagnosed?

A technician will use a scan tool to read the code and check live data, inspect wiring and connectors for damage, test the battery control module, and verify the voltage readings of the affected circuit.

6. What repairs are needed to fix the P1B83 code on a Cadillac?

Repairs may include replacing or repairing damaged wiring, replacing the hybrid battery module, replacing a faulty voltage sensor, or reprogramming/repairing the battery control module if necessary.

7. How much does it cost to fix a P1B83 code on a Cadillac?

The repair cost varies depending on the exact issue, ranging from $100â€“$300 for wiring repairs to $1,000 or more for hybrid battery module replacement.

8. Can a dead 12-volt battery cause the P1B83 code to appear?

A weak or dead 12-volt battery can sometimes cause communication issues or false error codes, but the P1B83 code specifically points to a high-voltage issue in the hybrid system.

9. How can I prevent the P1B83 code from recurring on my Cadillac?

Regular maintenance, including inspecting the hybrid battery system, checking wiring and connectors, and ensuring proper module operation, can help prevent this code from reoccurring.

10. Do I need to replace the entire hybrid battery for a P1B83 code?

Not always. If the issue is limited to a specific module or circuit, targeted repairs may suffice. A thorough diagnosis is needed to determine the extent of the problem.