AutoCodes – Generic – P1636

P1636 Code - Inductive Signature Chip Communication Error

Quick Answer

The Powertrain Control Module (PCM) monitors the communications with the Inductive Signature Chip. Common causes include Reprogram Powertrain Control Module (PCM), Damaged key chip, Faulty Powertrain 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: P1636 indicates Inductive Signature Chip Communication Error.
Common causes: Common causes include Reprogram Powertrain Control Module (PCM), Damaged key chip, Faulty Powertrain 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 33,053

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 Aug 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1636 Description

The Powertrain Control Module (PCM) monitors the communications with the Inductive Signature Chip. The Diagnostic Trouble Code (DTC) indicates the Powertrain Control Module has lost communication with the Inductive Signature Chip.

OBDII Code P1636 - Inductive Signature Chip Communication Error - AutoCodes.com — P1636 Code - Inductive Signature Chip Communication Error

What does this mean?

What are the Possible Causes of the DTC P1636?

Reprogram Powertrain Control Module (PCM)
Damaged key chip
Faulty Powertrain Control Module

How to Fix the DTC P1636?

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 P1636 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 P1636 code?

Need more information on how to fix the P1636 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1636 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1636 Audi — CAN Data Bus SRS No Signal
P1636 Buick — PCM Stack Overrun
P1636 Cadillac — PCM Stack Overrun
P1636 Chevrolet — PCM Stack Overrun
P1636 Ford — Inductive Signature Chip Communication Error
P1636 GMC — PCM Stack Overrun
P1636 Hyundai — Voltage Regulator For Injectors
P1636 Isuzu — Engine Control Module RAM Stack
P1636 Lincoln — Inductive Signature Chip Communication Error
P1636 Mercury — Inductive Signature Chip Communication Error
P1636 Volkswagen — CAN Data Bus SRS No Signal

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 P1636 Code

1. What are the common symptoms of OBDII code P1636 (Inductive Signature Chip Communication Error)?

- Common symptoms include engine stalling, rough idling, poor acceleration, and an illuminated Check Engine Light.

2. What can cause the OBDII code P1636 to trigger?

- The code P1636 is typically triggered by a faulty inductive signature chip, damaged wiring, or a poor connection between the chip and the vehicle's computer.

3. How serious is the Inductive Signature Chip Communication Error (P1636) code?

- While the symptoms may vary in severity, it is important to address this issue promptly to prevent further damage to the vehicle and ensure proper engine performance.

4. Can a DIY enthusiast repair the OBDII code P1636 at home?

- Repairing the P1636 code may require specialized diagnostic equipment and expertise. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

5. What are some basic troubleshooting steps for the Inductive Signature Chip Communication Error?

- Basic troubleshooting steps include checking the wiring connections, inspecting the inductive signature chip for damage, and ensuring proper communication between the chip and the vehicle's computer.

6. How much does it cost to repair the OBDII code P1636?

- Repair costs for the P1636 code can vary depending on the underlying issue, parts needed, and labor rates. It is best to obtain a diagnosis from a qualified mechanic for an accurate cost estimate.

7. Can driving with the P1636 code cause further damage to the vehicle?

- Continuing to drive with the P1636 code may lead to decreased engine performance, potential stalling, and increased fuel consumption. It is advisable to address the issue promptly.

8. Are there any recalls related to the OBDII code P1636?

- Recalls related to the P1636 code would depend on the specific vehicle make and model. Check with the manufacturer or visit the National Highway Traffic Safety Administration website for any related recalls.

9. How can I prevent the OBDII code P1636 from recurring?

- To prevent the P1636 code from recurring, it is essential to address the root cause of the issue, perform regular maintenance on the vehicle's electrical system, and follow recommended service intervals.

10. Is it safe to drive my vehicle with the Check Engine Light on due to code P1636?

- While the vehicle may still be operable with the Check Engine Light on, it is recommended to have the issue diagnosed and repaired as soon as possible to prevent potential complications and ensure optimal vehicle performance.