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Code P07BB

Quick reference

P07BB at a glance

Plain-language meaning
This code means that the car's computer found a problem with the sensor that tells the car if it's in park. It's like when a toy's switch gets stuck and doesn't work right.
Urgency
Moderate – It is important to address this issue to prevent potential transmission problems.
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 that the car's computer found a problem with the sensor that tells the car if it's in park. It's like when a toy's switch gets stuck and doesn't work right.

Explanation

The P07BB code indicates that the transmission park position sensor or switch B is not performing as expected or is reading a low signal.

Technical description

The transmission park position sensor/switch B is responsible for detecting the position of the gear selector and sending this information to the vehicle's computer. A performance or low circuit signal can indicate a malfunction in the sensor or its wiring, affecting the vehicle's ability to properly recognize when it is in park.

Symptoms

• Check engine light is on

• Vehicle may not start

• Transmission may not shift properly

Common Causes

• Faulty park position sensor/switch

• Damaged or corroded wiring or connectors

• Faulty transmission control module

Glossary

OBD-II: On-Board Diagnostics, a standardized system in cars for diagnosing problems.

Transmission Control Module: A computer that controls the operation of the transmission.

Diagnosis steps

• Use an OBD-II scanner to confirm the code

• Inspect the wiring and connectors for damage or corrosion

• Test the park position sensor/switch for proper operation

Repair procedures

• Replace the faulty park position sensor/switch

• 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

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly check and maintain transmission fluid levels

• Inspect wiring and connectors for damage

• Perform routine transmission inspections

Error code type

Sensor Issue

User experience recommendations

• Avoid driving the vehicle until the issue is resolved

• Consult a professional mechanic for accurate diagnosis

Warranty information

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

Historical data

This code has been reported in vehicles with electronic transmission controls, often due to sensor or wiring issues.

Urgency level

Moderate – It is important to address this issue to prevent potential transmission problems.

Testing conditions

• Vehicle parked on a level surface

• Transmission in park

Component location

The park position sensor/switch is typically located on the transmission housing near the gear selector mechanism.

FAQs

Q: Can I drive my car with a P07BB code?
A: It's not recommended to drive with this code as it can affect the transmission's ability to shift properly.

Q: How do I reset the check engine light after repairs?
A: Use an OBD-II scanner to clear the code after repairs are completed.

Optional diagnostic gear

Tools that may help diagnose P07BB

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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