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Code P2745

Quick reference

P2745 at a glance

Plain-language meaning
Your car has sensors that help it know how fast different parts are spinning. One of these sensors isn't working right, so the car might not shift gears smoothly.
Urgency
Moderate – It is advisable to address this 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

Your car has sensors that help it know how fast different parts are spinning. One of these sensors isn't working right, so the car might not shift gears smoothly.

Explanation

The P2745 code indicates a problem with the circuit of the intermediate shaft speed sensor B, which is responsible for monitoring the rotational speed of the intermediate shaft in the transmission.

Technical description

The intermediate shaft speed sensor B is part of the transmission system and helps the vehicle's ECU determine the speed of the intermediate shaft. This information is crucial for proper gear shifting and transmission performance. A fault in the sensor circuit can lead to improper transmission operation.

Symptoms

• Check Engine Light is on

• Harsh or erratic shifting

• Transmission slipping

Common Causes

• Faulty intermediate shaft speed sensor B

• Damaged or corroded wiring or connectors

• Malfunctioning transmission control module (TCM)

Glossary

ECU: Engine Control Unit

TCM: Transmission Control Module

Diagnosis steps

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

• Inspect the wiring and connectors for damage or corrosion.

• Test the intermediate shaft speed sensor B for proper operation.

Repair procedures

• Replace the faulty intermediate shaft speed sensor B.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the transmission control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford F-150

Preventive measures

• Regularly inspect and maintain transmission components.

• Ensure wiring and connectors are free from corrosion.

• Follow the manufacturer's maintenance schedule.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving aggressively until the issue is fixed.

• Get the vehicle inspected by a professional as soon as possible.

Warranty information

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

Historical data

This code has been associated with transmission issues in vehicles with electronic transmission controls.

Urgency level

Moderate – It is advisable to address this issue soon to prevent further transmission damage.

Testing conditions

• Vehicle at operating temperature

• Transmission in various gears

Component location

The intermediate shaft speed sensor B is typically located on the transmission housing.

FAQs

Q: Can I drive with a P2745 code?
A: It's possible, but not recommended. Driving with this code can lead to transmission damage and unsafe driving conditions.

Q: How is the P2745 code diagnosed?
A: A mechanic will use an OBD-II scanner to read the code, inspect the wiring, and test the sensor for proper operation.

Optional diagnostic gear

Tools that may help diagnose P2745

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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