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Code P179E

Quick reference

P179E at a glance

Plain-language meaning
This code means there's a problem with the sensor that helps your car know when to change gears between the 4th and 6th gear.
Urgency
Moderate – Address the issue soon to prevent further transmission damage.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with the sensor that helps your car know when to change gears between the 4th and 6th gear.

Explanation

The P179E code is triggered when the transmission control module detects a mechanical issue with the shift rod sensor for gears 4 and 6.

Technical description

The P179E code indicates a malfunction with the mechanical sensor that monitors the position of the shift rod responsible for engaging the 4th and 6th gears in the transmission system. This sensor provides feedback to the transmission control module (TCM) to ensure proper gear selection and engagement.

Symptoms

• Difficulty in shifting to 4th or 6th gear

• Transmission slipping

• Check Engine Light illuminated

Common Causes

• Faulty shift rod sensor

• Mechanical obstruction in the shift mechanism

• Wiring issues or poor connections

Glossary

Transmission Control Module (TCM): An electronic device that controls the transmission functions.

Shift Rod Sensor: A sensor that detects the position of the shift rod to ensure proper gear engagement.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connections to the shift rod sensor.

• Check for mechanical obstructions in the shift mechanism.

Repair procedures

• Replace the faulty shift rod sensor.

• Repair or replace damaged wiring or connectors.

• Remove any obstructions in the shift mechanism.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$200 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Volkswagen Passat

• Audi A4

• Skoda Superb

Preventive measures

• Regular maintenance of the transmission system

• Ensure proper lubrication of moving parts

• Regularly inspect wiring and connectors for damage

Error code type

Sensor Issue

User experience recommendations

• Avoid driving at high speeds until the issue is resolved.

• Seek professional diagnosis and repair.

Warranty information

Check with the vehicle manufacturer for specific warranty coverage on transmission components.

Historical data

This code has been associated with vehicles using advanced automatic transmissions with electronic control systems.

Urgency level

Moderate – Address the issue soon to prevent further transmission damage.

Testing conditions

• Vehicle at operating temperature

• Transmission in drive mode

Component location

The shift rod sensor is located within the transmission assembly, typically near the shift linkage.

FAQs

Q: Can I drive with a P179E code?
A: It's not recommended to drive with this code active as it can lead to further transmission issues.

Q: How do I clear a P179E code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, the code will return.

Optional diagnostic gear

Tools that may help diagnose P179E

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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