AutoCodesCadillac – P1617 Cadillac

P1617 Cadillac Code - Engine Oil Level Switch Circuit

Quick Answer

With the engine speed over 2000 rpm, throttle position over 5%, VSS input over 3 mph, vehicle in steady state cruise (no lateral acceleration detected), the Powertrain Control module (PCM) detects a low Engine Oil Level (EOL) switch signal (low voltage), and/or no transition of the EOL switch for at least 8 seconds. Common causes include Faulty Engine Oil Level (EOL), Engine Oil Level (EOL) harness is open or shorted, Engine Oil Level (EOL) circuit poor electrical connection. 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
P1617 Cadillac indicates Engine Oil Level Switch Circuit.
Common causes
Common causes include Faulty Engine Oil Level (EOL), Engine Oil Level (EOL) harness is open or shorted, Engine Oil Level (EOL) circuit poor electrical connection.
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.
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Code Popularity 10,776
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 01, 2019
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Code P1617 Cadillac Description

With the engine speed over 2000 rpm, throttle position over 5%, VSS input over 3 mph, vehicle in steady state cruise (no lateral acceleration detected), the Powertrain Control module (PCM) detects a low Engine Oil Level (EOL) switch signal (low voltage), and/or no transition of the EOL switch for at least 8 seconds.
OBDII Code P1617 Cadillac - Engine Oil Level Switch Circuit - AutoCodes.com
P1617 Cadillac Code - Engine Oil Level Switch Circuit

What are the Possible Causes of the DTC P1617 Cadillac?

  • Faulty Engine Oil Level (EOL)
  • Engine Oil Level (EOL) harness is open or shorted
  • Engine Oil Level (EOL) circuit poor electrical connection

How to Fix the DTC P1617 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1617 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P1617 Cadillac Code

1. What does the OBDII code P1617 mean on a Cadillac?

P1617 indicates an issue with the Engine Oil Level Switch Circuit, which monitors and reports the engine oil level to the vehicle's computer.

2. What are the common symptoms of the P1617 code?

Symptoms may include the oil level warning light illuminating, inaccurate oil level readings, or no noticeable symptoms at all in some cases.

3. What causes the P1617 code to appear?

Common causes include a faulty engine oil level switch, damaged or corroded wiring, a loose connection in the circuit, or a malfunction in the engine control module (ECM).

4. Can I drive my Cadillac with the P1617 code active?

While the car may still operate, it’s not advisable to ignore this code, as it could lead to undetected low oil levels and potential engine damage.

5. How do I diagnose the P1617 code?

Start by checking the oil level switch and its wiring for damage or corrosion. Use a multimeter to test the switch and circuit continuity. If no issues are found, inspect the ECM.

6. How can I fix the P1617 code on my Cadillac?

Repairs may include replacing a faulty oil level switch, repairing damaged wiring, cleaning corroded connections, or, in rare cases, reprogramming or replacing the ECM.

7. How much does it cost to fix the P1617 code?

Costs vary depending on the issue. Replacing the oil level switch typically costs $100–$300, while more complex ECM repairs can be significantly higher.

8. Can a low oil level cause the P1617 code?

No, the P1617 code specifically relates to the circuit or sensor malfunction, not the actual oil level. However, it’s still important to verify the oil level when this code appears.

9. Will clearing the P1617 code fix the issue?

Clearing the code may temporarily turn off the warning light, but the underlying issue must be addressed to prevent the code from returning.

10. What tools do I need to troubleshoot the P1617 code?

You’ll need an OBDII scanner, a multimeter to test electrical components, and potentially wiring diagrams for the oil level switch circuit.

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