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Code P1735

Quick reference

P1735 at a glance

Plain-language meaning
The car's computer found a problem inside the transmission's control system, like a glitch in a video game, and it's causing trouble.
Urgency
Moderate – Addressing this issue is important to prevent further transmission damage.
Difficulty
Moderate
System
Transmission Control System Issue
Tools mentioned
OBD-II Scanner, Multimeter, Basic hand tools

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

Laymans terms

The car's computer found a problem inside the transmission's control system, like a glitch in a video game, and it's causing trouble.

Explanation

This code indicates a fault within the Transmission Control Module (TCM) where an internal error has been detected, specifically related to interference or noise levels being below expected thresholds.

Technical description

The P1735 code is triggered when the Transmission Control Module (TCM) detects an internal error related to interference levels. This could be due to electrical noise or signal interference that falls below a predefined threshold, suggesting a potential fault in the TCM's internal processing or communication pathways.

Symptoms

• Check Engine Light is on

• Transmission may not shift properly

• Vehicle may enter limp mode

Common Causes

• Faulty Transmission Control Module (TCM)

• Electrical interference or noise in the transmission circuit

• Poor grounding or electrical connections

Glossary

Transmission Control Module (TCM): A computer that controls the transmission's functions.

Interference: Unwanted electrical noise or signals that can disrupt electronic systems.

Diagnosis steps

• Use an OBD-II scanner to confirm the P1735 code.

• Inspect the TCM and its wiring for signs of damage or corrosion.

• Check for proper grounding and electrical connections.

Repair procedures

• Replace or reprogram the Transmission Control Module (TCM).

• Repair or replace damaged wiring or connectors.

• Ensure proper grounding and eliminate electrical interference.

Tools required

• OBD-II Scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$300 - $1200

Difficulty level

Moderate

Commonly affected vehicles

• Nissan Altima

• Infiniti G35

• Chrysler 300

Preventive measures

• Regularly inspect and maintain electrical connections.

• Avoid aftermarket electronic devices that may cause interference.

• Ensure proper vehicle grounding.

Error code type

Transmission Control System Issue

User experience recommendations

• Avoid driving the vehicle if it feels unsafe or if the transmission is not shifting properly.

• Consult a professional mechanic for accurate diagnosis and repair.

Warranty information

Check if the vehicle's powertrain or emissions warranty covers TCM-related issues.

Historical data

This code has been associated with vehicles that have experienced electrical interference issues, particularly in models with complex electronic systems.

Urgency level

Moderate – Addressing this issue is important to prevent further transmission damage.

Testing conditions

• Vehicle at operating temperature

• Stable electrical system voltage

Component location

The Transmission Control Module (TCM) is typically located near the transmission or under the vehicle's dashboard.

FAQs

Q: Can I drive with a P1735 code?
A: It's not recommended as it could lead to transmission issues and unsafe driving conditions.

Q: Will resetting the code fix the problem?
A: Resetting the code may clear the warning temporarily, but it won't fix the underlying issue.

Optional diagnostic gear

Tools that may help diagnose P1735

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.

View on Amazon
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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