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OBDHut

P1911

Easy (DIY)

Kickdown Pull Relay Open or Short Circuit to Ground

What Does P1911 Mean?

The kickdown pull relay circuit has an open circuit or short to ground condition. This relay activates to enable forced downshift functionality, and circuit faults prevent proper kickdown operation.

Common Causes

35%

Failed kickdown pull relay with open coil or stuck contacts

Kickdown pull relay

25%

Corroded or damaged relay socket/connector

Relay socket
Connector

20%

Broken or shorted wiring between TCM and relay

Wiring harness

15%

Blown fuse in kickdown relay circuit

Fuse

5%

TCM relay driver circuit failure

Transmission control module

Diagnostic Steps

1

Step 1: Locate and inspect kickdown pull relay; check for physical damage, corrosion, or overheating marks

2

Step 2: Test relay operation by measuring coil resistance and checking contact continuity when energized

3

Step 3: Verify fuse integrity and check for proper voltage at relay power supply circuit

4

Step 4: Test continuity of ground circuit and control circuit between TCM and relay socket

5

Step 5: Use scan tool to command relay activation while monitoring voltage at relay terminals

Estimated Repair Cost

$80 - $300

Parts + labor, varies by vehicle and location

Frequently Asked Questions

What does P1911 mean?

The kickdown pull relay circuit has an open circuit or short to ground condition. This relay activates to enable forced downshift functionality, and circuit faults prevent proper kickdown operation.

What causes P1911?

The most common cause of P1911 (Kickdown Pull Relay Open or Short Circuit to Ground) is: Failed kickdown pull relay with open coil or stuck contacts

How much does it cost to fix P1911?

Typical repair costs for P1911 range from $80 to $300, depending on the vehicle, location, and whether you do it yourself or go to a shop.

Is it safe to drive with P1911?

Loss of kickdown function reduces acceleration performance and passing ability. No direct safety hazard but limits vehicle responsiveness in emergency situations.

How do I diagnose P1911?

Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1911 to identify the root cause.

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Quick Info

Category

Powertrain

System

Automatic Transmission

Difficulty

Easy (DIY)

Type

Manufacturer

Recommended Tools

OBD2 Scanner

A quality scan tool helps you read codes, view live data, and clear faults.