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Engine-Codes – Saab – P1653 Saab

P1653 Saab Code - Engine Control Relay Short To Positive

Quick Answer

When a Saab vehicle displays the P1653 diagnostic trouble code (DTC), it indicates that there is a short to positive in the engine control relay circuit. Common causes include Damaged wiring or connectors in the engine control relay circuit, Faulty engine control relay, Malfunctioning ECM. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P1653 Saab indicates Engine Control Relay Short To Positive.
Common causes
Common causes include Damaged wiring or connectors in the engine control relay circuit, Faulty engine control relay, Malfunctioning ECM.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1653 Saab Description

When a Saab vehicle displays the P1653 diagnostic trouble code (DTC), it indicates that there is a short to positive in the engine control relay circuit. The engine control relay plays a crucial role in providing power to various components of the engine control module (ECM), which is responsible for managing the engine's performance and efficiency. A short to positive in this circuit means that there is an unintended connection between the relay and a positive power source, which can disrupt the proper functioning of the ECM.

OBDII Code P1653 Saab - Engine Control Relay Short To Positive
P1653 Saab Code - Engine Control Relay Short To Positive

Common Causes of P1653 Saab

  1. Damaged wiring or connectors in the engine control relay circuit
  2. Faulty engine control relay
  3. Malfunctioning ECM
  4. Short circuit in the system

Symptoms of P1653 Saab

  1. Engine misfires or rough idling
  2. Engine stalling or difficulty starting
  3. Illumination of the Check Engine Light
  4. Reduced engine performance or power loss

How to Fix P1653 Saab

  1. Begin by conducting a thorough visual inspection of the engine control relay and its associated wiring and connectors.
  2. Use a multimeter to test the continuity and resistance in the relay circuit to identify any shorts or open circuits.
  3. Replace any damaged wiring, connectors, or the engine control relay as needed.
  4. Clear the DTC from the vehicle's ECM using a diagnostic scan tool.
  5. Test drive the vehicle to ensure the issue has been successfully resolved and that the engine operates normally.

Cost to Fix P1653 Saab

The cost of repairing a P1653 engine control relay short to positive code can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the cost of replacing a faulty engine control relay and addressing related wiring issues can range from $150 to $300, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Additionally, the cost may increase if the ECM needs to be replaced or if there are other underlying issues contributing to the code. It is advisable to consult with a qualified mechanic or service center to obtain an accurate cost estimate based on the specific circumstances of your vehicle.

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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 P1653 Saab Code

1. What are the common symptoms of OBDII code P1653 (Saab) indicating an Engine Control Relay Short To Positive issue?

The common symptoms include engine stalling, difficulty starting the vehicle, and potential loss of power while driving.

2. What are the possible causes of OBDII code P1653 (Saab)?

The code P1653 may be triggered by a faulty engine control relay, damaged wiring, or a short circuit in the relay circuit.

3. How can I diagnose the Engine Control Relay Short To Positive issue related to OBDII code P1653 in my Saab?

To diagnose the problem, you can perform a visual inspection of the relay and its wiring, test the relay for continuity, and check for any signs of a short circuit.

4. Can driving with OBDII code P1653 (Saab) cause further damage to the vehicle?

Continuing to drive with the Engine Control Relay Short To Positive issue can potentially cause damage to other electrical components in the vehicle, leading to more extensive repairs.

5. What are some repair tips for fixing OBDII code P1653 (Saab)?

Repair tips include replacing the faulty engine control relay, repairing any damaged wiring, and ensuring proper connections in the relay circuit.

6. Is it safe to continue driving my Saab with OBDII code P1653 (Engine Control Relay Short To Positive)?

It is not recommended to drive the vehicle with this code as it can lead to unpredictable behavior and potential safety hazards on the road.

7. Can I reset OBDII code P1653 (Saab) by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to repair OBDII code P1653 (Saab) at a mechanic?

The cost of repairing OBDII code P1653 can vary depending on the extent of the damage and the labor rates of the mechanic, but it generally ranges from $100 to $300.

9. Are there any preventative measures I can take to avoid OBDII code P1653 (Saab) in the future?

Regularly inspecting the engine control relay, checking for any signs of wear or damage, and addressing any electrical issues promptly can help prevent the recurrence of this code.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P1653 (Saab) at home?

While some repairs related to this code can be done at home, it is recommended to consult a professional mechanic for an accurate diagnosis and proper repair to ensure the issue is resolved effectively.

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