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Code P1A69

Quick reference

P1A69 at a glance

Plain-language meaning
This code means that there's a problem with the electric pump that helps move the fluid in the car's transmission. It's not getting enough power to work properly.
Urgency
Moderate – Address the issue soon to prevent potential transmission damage.
Difficulty
Moderate
System
Electrical Circuit 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 there's a problem with the electric pump that helps move the fluid in the car's transmission. It's not getting enough power to work properly.

Explanation

The P1A69 code indicates that the voltage level in the circuit for the electric or auxiliary transmission fluid pump motor is lower than expected.

Technical description

The electric or auxiliary transmission fluid pump is responsible for maintaining the necessary pressure and flow of transmission fluid. The P1A69 code is triggered when the powertrain control module (PCM) detects that the voltage in the high voltage circuit of this pump is below the specified range, which can affect the performance of the transmission.

Symptoms

• Check Engine Light is on

• Transmission may not shift properly

• Reduced fuel efficiency

Common Causes

• Faulty electric transmission fluid pump

• Wiring issues such as shorts or opens in the circuit

• Defective powertrain control module (PCM)

Glossary

PCM: Powertrain Control Module, the computer that controls the engine and transmission.

Transmission Fluid Pump: A pump that circulates transmission fluid to ensure proper lubrication and cooling.

Diagnosis steps

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

• Inspect the wiring and connectors for damage or corrosion.

• Test the electric transmission fluid pump for proper operation.

Repair procedures

• Repair or replace damaged wiring or connectors.

• Replace the electric transmission fluid pump if faulty.

• Reprogram or replace the PCM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$300 - $800

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Toyota Prius

• Ford Fusion Hybrid

Preventive measures

• Regularly inspect and maintain the transmission system.

• Ensure proper electrical connections.

• Schedule routine vehicle check-ups.

Error code type

Electrical Circuit Issue

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional mechanic.

• Avoid driving the vehicle if transmission issues are severe.

Warranty information

Check with the vehicle manufacturer for warranty coverage on the transmission system.

Historical data

This code is relatively uncommon and typically associated with hybrid or electric vehicles.

Urgency level

Moderate – Address the issue soon to prevent potential transmission damage.

Testing conditions

• Vehicle must be in a safe, stationary position.

• Ensure the battery is fully charged.

Component location

The electric transmission fluid pump is typically located near the transmission assembly.

FAQs

Q: Can I drive with a P1A69 code?
A: It's not recommended to drive for long periods with this code, as it can lead to transmission issues.

Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the transmission system can help prevent this issue.

Optional diagnostic gear

Tools that may help diagnose P1A69

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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