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Code P1653

Quick reference

P1653 at a glance

Plain-language meaning
This code means that the car's computer thinks there's something wrong with how much power is being sent to the wheels from the engine.
Urgency
Moderate – Should be addressed soon to avoid potential damage to the transmission.
Difficulty
Moderate
System
Transmission Issue
Tools mentioned
OBD-II scanner, Multimeter, Torque sensor testing tool

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

Laymans terms

This code means that the car's computer thinks there's something wrong with how much power is being sent to the wheels from the engine.

Explanation

The vehicle's computer monitors the torque being delivered from the engine to the transmission. If the torque values are not within expected ranges, this code is triggered.

Technical description

P1653 is set when the Powertrain Control Module (PCM) detects an implausible torque value being transmitted from the engine to the transmission. This could be due to a mismatch between the expected and actual torque values, indicating a potential issue with the transmission or related sensors.

Symptoms

• Check Engine Light is on

• Erratic shifting

• Reduced engine performance

Common Causes

• Faulty torque sensor

• Transmission control module (TCM) malfunction

• Wiring issues or poor connections

Glossary

Torque: A measure of rotational force.

Transmission: A system in a vehicle that transmits power from the engine to the wheels.

Diagnosis steps

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

• Inspect wiring and connectors for damage or corrosion.

• Test the torque sensor for proper operation.

Repair procedures

• Replace faulty torque sensor.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the transmission control module (TCM).

Tools required

• OBD-II scanner

• Multimeter

• Torque sensor testing tool

Estimated repair cost

$150 - $800

Difficulty level

Moderate

Commonly affected vehicles

• Ford Focus

• Chevrolet Malibu

• Honda Accord

Preventive measures

• Regular maintenance and inspection of transmission components

• Ensure proper fluid levels and quality

• Address any transmission issues promptly

Error code type

Transmission Issue

User experience recommendations

• Avoid driving the vehicle until the issue is diagnosed.

• Consult a professional mechanic for accurate diagnosis and repair.

Warranty information

Check with your vehicle manufacturer for warranty coverage on transmission components.

Historical data

This code has been reported in vehicles with both automatic and manual transmissions, often related to sensor or wiring issues.

Urgency level

Moderate – Should be addressed soon to avoid potential damage to the transmission.

Testing conditions

• Vehicle at operating temperature

• Transmission in drive or reverse

Component location

The torque sensor is typically located near the transmission or within the transmission housing.

FAQs

Q: Can I drive with a P1653 code?
A: It's not recommended to drive with this code as it may cause further damage to the transmission.

Q: How can I prevent this code from appearing?
A: Regular maintenance and prompt attention to any transmission issues can help prevent this code.

Optional diagnostic gear

Tools that may help diagnose P1653

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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