P0991: P0991: Transmission Advanced System - Pressure Control Solenoid 'A' Circuit Low

on 2017 Toyota CAMRY

Fix Cost

$100 - $500

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

❌ No

Pro recommended

Your Vehicle

2017 Toyota

CAMRY

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Important for 2017 Toyota CAMRY Owners

Before starting repairs, verify which engine your 2017 Toyota CAMRY has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0991 Mean on 2017 Toyota CAMRY?

The Powertrain Control Module (PCM) has detected a low voltage signal from the Pressure Control Solenoid 'A' circuit, indicating a problem with the transmission's pressure control system.

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Symptoms

• Transmission slipping
• hesitation
• or hesitation during acceleration
• unusual noises
• or difficulty shifting gears.

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Common Causes

• Faulty Pressure Control Solenoid 'A'
• clogged transmission filter
• low transmission fluid level
• or a faulty transmission pressure sensor.

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How to Fix P0991 on 2017 Toyota CAMRY

1. Check transmission fluid level and top off as necessary. 2. Inspect and clean the transmission filter. 3. Replace the Pressure Control Solenoid 'A' if faulty. 4. Check and replace the transmission pressure sensor if necessary.

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