Engine-CodesSaturn – P0804 Saturn

P0804 Saturn Code - Skip Shift Lamp Control Circuit

Quick Answer

The P0804 diagnostic trouble code (DTC) for Saturn vehicles refers to the Skip Shift Lamp Control Circuit. Common causes include Faulty skip shift solenoid, Malfunctioning skip shift lamp, Wiring issues in the skip shift lamp control 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
P0804 Saturn indicates Skip Shift Lamp Control Circuit.
Common causes
Common causes include Faulty skip shift solenoid, Malfunctioning skip shift lamp, Wiring issues in the skip shift lamp control 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0804 Saturn Description

The P0804 diagnostic trouble code (DTC) for Saturn vehicles refers to the Skip Shift Lamp Control Circuit. This code is typically found in vehicles with manual transmissions and is related to the skip shift feature that is designed to improve fuel economy by forcing the driver to shift from first gear to fourth gear under certain driving conditions. The skip shift lamp is a visual indicator that informs the driver when the skip shift feature is active.

OBDII Code P0804 Saturn - Skip Shift Lamp Control Circuit
P0804 Saturn Code - Skip Shift Lamp Control Circuit

Common Causes of P0804 Saturn

  1. Faulty skip shift solenoid
  2. Malfunctioning skip shift lamp
  3. Wiring issues in the skip shift lamp control circuit
  4. Problems with the vehicle's computer system
  5. Corrosion or damage to electrical connectors related to the skip shift system

Symptoms of P0804 Saturn

  1. Illumination of the check engine light on the dashboard
  2. Inability to engage or disengage the skip shift feature
  3. Erratic behavior of the skip shift lamp
  4. Decreased fuel efficiency
  5. Difficulty shifting gears smoothly

How to Fix P0804 Saturn

  1. Begin by diagnosing the root cause of the issue using a scan tool to retrieve the DTC and inspecting the skip shift solenoid, lamp, and wiring for any visible damage.
  2. Replace the faulty skip shift solenoid or lamp if they are found to be defective.
  3. Repair any damaged wiring or connectors in the skip shift control circuit.
  4. Clear the DTC from the vehicle's computer memory using the scan tool.
  5. Test drive the vehicle to ensure that the skip shift feature is functioning properly and that the check engine light does not re-illuminate.

Cost to Fix P0804 Saturn

The cost of repairing a P0804 code on a Saturn vehicle can vary depending on the specific cause of the issue and the labor rates in your area. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Including diagnostic time, the total repair cost could be anywhere from $150 to $500. It's important to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's specific needs.

When is the Code Detected?

When the Powertrain Control Module (PCM) commands the control circuit to a component OFF, the voltage potential of the circuit should be high (near battery voltage). If the fault detection circuit senses a voltage other than what is expected, the fault line status changes causing theP0804 code is set.

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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.

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