AutoCodes – Generic – U1197

U1197 Code - Security Seed Response Not Received From ECM/PCM

Quick Answer

Whenever the ignition is turned on or there is a remote start active, the Radio Frequency (RF) Hub performs a self-test and resynchronization routine. Common causes include Powertrain Control Module (PCM) Programming. 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: U1197 indicates Security Seed Response Not Received From ECM/PCM.
Common causes: Common causes include Powertrain Control Module (PCM) Programming.
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 13,872

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 Apr 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U1197 Description

Whenever the ignition is turned on or there is a remote start active, the Radio Frequency (RF) Hub performs a self-test and resynchronization routine. During the routine, the RF Hub interrogates the FOBIK for the secret key information and performs a Controller Area Network (CAN) Bus message handshake with the Powertrain Control Module (PCM) to start the vehicle. The PCM must reply to the RF Hub that the secret key information matches to initiate the start sequence or this code will set. The Diagnostic Trouble Code (DTC) sets whenever the RF Hub performs a handshake with the PCM and does not receive a security seed response from the PCM.

OBDII Code U1197 - Security Seed Response Not Received From ECM/PCM - AutoCodes.com — U1197 Code - Security Seed Response Not Received From ECM/PCM

What does this mean?

What are the Possible Causes of the DTC U1197?

Powertrain Control Module (PCM) Programming

How to Fix the DTC U1197?

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 U1197 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 U1197 code?

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Need Help with the Code?

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Information for Specific Makes

U1197 Chrysler — Security Seed Response Not Received From ECM/PCM
U1197 Dodge — Security Seed Response Not Received From ECM/PCM
U1197 Jeep — Security Seed Response Not Received From ECM/PCM
U1197 RAM — Security Seed Response Not Received From ECM/PCM

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.