P0693 Pontiac Code - Cooling Fan 2 Control Circuit Low
Quick Answer
The Engine Control Module (ECM) grounds the low-speed relay, which is the Fan Low relay, and the high-speed relay, which is the Fan High relay, control circuits through an internal solid-state device called a driver. Common causes include Faulty Cooling Fan 2 Relay, Cooling Fan 2 Relay harness is open or shorted, Cooling Fan 2 Relay 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
- P0693 Pontiac indicates Cooling Fan 2 Control Circuit Low.
- Common causes
- Common causes include Faulty Cooling Fan 2 Relay, Cooling Fan 2 Relay harness is open or shorted, Cooling Fan 2 Relay 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.
Code P0693 Pontiac Description
What are the Possible Causes of the DTC P0693 Pontiac?
- Faulty Cooling Fan 2 Relay
- Cooling Fan 2 Relay harness is open or shorted
- Cooling Fan 2 Relay circuit poor electrical connection
- Faulty Cooling Fan 1
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0693 Pontiac?
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 P0693 Pontiac 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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Frequently Asked Questions about P0693 Pontiac Code
1. What does the OBDII code P0693 mean on a Pontiac?
P0693 indicates a problem with the Cooling Fan 2 Control Circuit, specifically that the circuit is experiencing low voltage or a malfunction.
2. What are the common symptoms of a P0693 code on a Pontiac?
Symptoms may include engine overheating, the cooling fan not turning on, an illuminated check engine light, and possibly reduced air conditioning performance.
3. What causes the P0693 code to appear?
The most common causes are a faulty cooling fan relay, damaged wiring or connectors in the fan circuit, a failed cooling fan motor, or a malfunctioning Engine Control Module (ECM).
4. Can you drive with a P0693 code on a Pontiac?
While you can drive short distances, it is not recommended because the engine may overheat, potentially leading to significant damage.
5. How do you diagnose the P0693 code?
Start by checking the cooling fan relay, wiring, and connectors for damage or corrosion. Use a multimeter to test for proper voltage and continuity in the circuit.
6. How do you fix the P0693 code on a Pontiac?
Repairs may include replacing a faulty cooling fan relay, repairing or replacing damaged wiring or connectors, or replacing a failed cooling fan motor.
7. Can a bad cooling fan cause the P0693 code?
Yes, a faulty cooling fan motor can cause the circuit to draw too much current or fail to operate, triggering the P0693 code.
8. Will clearing the code fix the P0693 issue permanently?
No, clearing the code will remove it temporarily, but the underlying issue must be resolved to prevent the code from returning.
9. How much does it cost to repair a P0693 code on a Pontiac?
The cost varies depending on the root cause, ranging from $50 to $150 for a relay replacement to $300 or more for a new cooling fan motor.
10. Can a failing ECM cause the P0693 code?
Yes, though it is less common, a malfunctioning Engine Control Module (ECM) can misinterpret signals and trigger the P0693 code.
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