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Engine-Codes – Saab – P1670 Saab

P1670 Saab Code - Throttle Actuator Limp Home Relay Open Circuit / Short To Ground

Quick Answer

The P1670 code for Saab vehicles indicates a problem with the Throttle Actuator Limp Home Relay, specifically an open circuit or a short to ground. Common causes include Faulty throttle actuator relay, Wiring or connection issues, Corrosion or damage to the relay circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1670 Saab indicates Throttle Actuator Limp Home Relay Open Circuit / Short To Ground.
Common causes
Common causes include Faulty throttle actuator relay, Wiring or connection issues, Corrosion or damage to the relay circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1670 Saab Description

The P1670 code for Saab vehicles indicates a problem with the Throttle Actuator Limp Home Relay, specifically an open circuit or a short to ground. The throttle actuator is responsible for controlling the throttle plate in the engine, regulating the amount of air that enters the engine for combustion. The limp home relay is a safety feature that allows the vehicle to operate at a reduced power mode in case of a fault to prevent further damage.

OBDII Code P1670 Saab - Throttle Actuator Limp Home Relay Open Circuit / Short To Ground
P1670 Saab Code - Throttle Actuator Limp Home Relay Open Circuit / Short To Ground

Common Causes of P1670 Saab

  1. Faulty throttle actuator relay
  2. Wiring or connection issues
  3. Corrosion or damage to the relay circuit
  4. Electrical system malfunction
  5. Poor maintenance or age-related wear

Symptoms of P1670 Saab

  1. Reduced engine power
  2. Difficulty accelerating
  3. Engine stalling or hesitation
  4. Check Engine Light illuminated
  5. Limp home mode activated

How to Fix P1670 Saab

  1. Diagnose the issue using a diagnostic scanner to confirm the P1670 code and pinpoint the exact cause.
  2. Inspect the throttle actuator relay and related wiring for any signs of damage, corrosion, or loose connections.
  3. Test the relay with a multimeter to determine if it is functioning properly.
  4. Replace the faulty relay or repair any damaged wiring or connections as needed.
  5. Clear the code, reset the system, and test drive the vehicle to ensure the issue is resolved.

Cost to Fix P1670 Saab

The cost of repairing a P1670 code for a Saab vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $500 for this repair. It's important to note that these are rough estimates, and actual costs may vary based on your location and the specific circumstances of your vehicle. Be sure to consult with a qualified mechanic to get an accurate quote for your specific situation.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1670 Saab Code

1. What are the common symptoms of OBDII code P1670 in a Saab related to the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue?

- Common symptoms include the engine entering limp mode, reduced power output, and potential stalling while driving.

2. What could cause the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue in a Saab triggering code P1670?

- The issue could be caused by a faulty throttle actuator, a wiring harness problem, a defective relay, or a short circuit in the system.

3. How can I diagnose the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground problem triggering OBDII code P1670 in my Saab?

- Diagnosis involves checking the throttle actuator, inspecting the wiring for any damage or shorts, testing the relay, and using a multimeter to measure circuit continuity.

4. Is it safe to continue driving my Saab with OBDII code P1670 related to the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue?

- It is not recommended to drive the vehicle with this issue as it can lead to further damage and potential safety risks. It's best to address the problem promptly.

5. Can I reset the OBDII code P1670 related to the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue by disconnecting the battery?

- Disconnecting the battery may clear the code temporarily, but it is important to address the root cause of the problem to prevent the code from reappearing.

6. What are some repair tips for fixing the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue triggering OBDII code P1670 in a Saab?

- Repair tips include inspecting and repairing any damaged wiring, replacing the faulty throttle actuator or relay, and ensuring all connections are secure and free of corrosion.

7. Can a DIY enthusiast fix the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue triggering OBDII code P1670 in a Saab?

- Depending on your level of automotive expertise, some DIY enthusiasts may be able to address this issue by following repair guides and using the necessary tools and equipment.

8. Will fixing the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue related to OBDII code P1670 require specialized Saab diagnostic equipment?

- While specialized diagnostic equipment can be helpful for pinpointing the exact cause of the issue, basic tools like a multimeter and a code reader can also aid in diagnosis and repair.

9. How critical is it to address the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue causing OBDII code P1670 promptly?

- It is important to address this issue promptly to prevent further damage to the throttle system, ensure safe driving conditions, and avoid potential engine performance issues.

10. What is the typical cost of repairing the Throttle Actuator Limp Home Relay Open Circuit / Short To Ground issue linked to OBDII code P1670 in a Saab?

- The cost of repair can vary based on the specific cause of the issue, but it may involve expenses for parts like a new throttle actuator or relay, as well as labor costs if professional help is needed.

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