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Code P1716

Quick reference

P1716 at a glance

Plain-language meaning
This code means that the car's computer has detected a problem with how often the hydraulic unit is turning on. It's like if a water pump in your house was turning on too often or not enough.
Urgency
Moderate – Address the issue soon to avoid further transmission damage.
Difficulty
Moderate
System
Transmission Control 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 that the car's computer has detected a problem with how often the hydraulic unit is turning on. It's like if a water pump in your house was turning on too often or not enough.

Explanation

The P1716 code is triggered when the transmission control module (TCM) detects an abnormal frequency in the activation of the hydraulic unit.

Technical description

The hydraulic unit in a vehicle's transmission system is responsible for controlling the flow of transmission fluid. This code indicates that the frequency of the hydraulic unit turning on is outside of the expected range, which could be due to a malfunctioning component or sensor within the transmission system.

Symptoms

• Transmission slipping

• Erratic shifting

• Illuminated check engine light

Common Causes

• Faulty hydraulic unit

• Defective transmission control module (TCM)

• Wiring issues or poor electrical connections

Glossary

Hydraulic Unit: A component in the transmission that controls fluid flow.

Transmission Control Module (TCM): An electronic device that controls the transmission's operations.

Diagnosis steps

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

• Inspect the hydraulic unit and related wiring for damage.

• Test the transmission control module for faults.

Repair procedures

• Replace or repair the hydraulic unit if necessary.

• Fix any wiring issues or poor connections.

• Replace the transmission control module if it's defective.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$300 - $1200

Difficulty level

Moderate

Commonly affected vehicles

• Nissan Altima

• Infiniti G35

• Nissan Maxima

Preventive measures

• Regular transmission maintenance

• Ensure proper fluid levels

• Check for any leaks periodically

Error code type

Transmission Control Issue

User experience recommendations

• Avoid driving aggressively until the issue is resolved.

• Consult a professional mechanic for a thorough inspection.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage related to transmission components.

Historical data

This code has been associated with certain Nissan and Infiniti models, particularly those with CVT transmissions.

Urgency level

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

Testing conditions

• Vehicle at operating temperature

• Transmission in drive mode

Component location

The hydraulic unit is located within the transmission assembly.

FAQs

Q: Can I drive with a P1716 code?
A: It's not recommended to drive for extended periods, as it can cause further damage to the transmission.

Q: How do I clear the P1716 code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.

Optional diagnostic gear

Tools that may help diagnose P1716

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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