AutoCodes – GMC – P1692 GMC

P1692 GMC Code - Coolant Gauge Circuit High Voltage

Quick Answer

With the key on, and the Powertrain Control Module (PCM) detects an open, short-to-ground or short-to-voltage condition in the Coolant Gauge Circuit. Common causes include Faulty Coolant Gauge, Coolant Gauge harness is open or shorted, Coolant Gauge 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
P1692 GMC indicates Coolant Gauge Circuit High Voltage.
Common causes
Common causes include Faulty Coolant Gauge, Coolant Gauge harness is open or shorted, Coolant Gauge 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,969
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 09, 2019
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Code P1692 GMC Description

With the key on, and the Powertrain Control Module (PCM) detects an open, short-to-ground or short-to-voltage condition in the Coolant Gauge Circuit.
OBDII Code P1692 GMC - Coolant Gauge Circuit High Voltage - AutoCodes.com
P1692 GMC Code - Coolant Gauge Circuit High Voltage

What are the Possible Causes of the DTC P1692 GMC?

  • Faulty Coolant Gauge
  • Coolant Gauge harness is open or shorted
  • Coolant Gauge circuit poor electrical connection

How to Fix the DTC P1692 GMC?

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 P1692 GMC 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.

Need more information about the P1692 GMC code?

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Need Help with the Code?

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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 P1692 GMC Code

1. What does the OBDII code P1692 mean for a GMC vehicle?

P1692 indicates a problem with the coolant gauge circuit, specifically high voltage detected in the system.

2. What are the symptoms of the P1692 code in a GMC?

Common symptoms include inaccurate or erratic coolant temperature readings on the gauge and possible overheating or warning lights on the dashboard.

3. What causes the P1692 code to appear in a GMC?

Possible causes include a faulty coolant temperature sensor, damaged wiring or connectors, or issues with the instrument cluster.

4. Can the P1692 code cause engine performance issues?

While the code itself may not directly affect engine performance, inaccurate coolant temperature readings can lead to overheating if not addressed.

5. How do I diagnose the P1692 code?

Diagnosis involves checking the coolant temperature sensor, inspecting wiring and connectors for damage, and testing the instrument cluster for faults.

6. Is it safe to drive with the P1692 code active?

It is not recommended to drive for extended periods with this code active, as inaccurate temperature readings may prevent you from detecting overheating.

7. How can I fix the P1692 code on my GMC?

Repairs may include replacing the coolant temperature sensor, repairing or replacing damaged wiring, or addressing issues with the gauge cluster.

8. How much does it cost to repair the P1692 code on a GMC?

Repair costs vary but typically range from $100 to $300, depending on whether the coolant sensor or wiring needs replacement.

9. Can the P1692 code trigger other warning lights?

Yes, the code may trigger the check engine light and potentially the temperature warning light.

10. Will clearing the P1692 code solve the issue permanently?

Clearing the code may temporarily turn off the warning light, but without addressing the underlying issue, the code is likely to return.

Discuss the causes and fixes for P1692 GMC OBDII Code

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