P1D99 Acura Code - Electric Powertrain Coolant Pump Control Circuit Open
Quick Answer
The powertrain control unit (PCU) has a liquid cooling system and it uses an electric motor control module coolant pump to circulate the coolant. Common causes include Faulty Electric Powertrain Coolant Pump, Electric Powertrain Coolant Pump harness is open or shorted, Electric Powertrain Coolant Pump 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
- P1D99 Acura indicates Electric Powertrain Coolant Pump Control Circuit Open.
- Common causes
- Common causes include Faulty Electric Powertrain Coolant Pump, Electric Powertrain Coolant Pump harness is open or shorted, Electric Powertrain Coolant Pump 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 P1D99 Acura Description
What are the Possible Causes of the DTC P1D99 Acura?
- Faulty Electric Powertrain Coolant Pump
- Electric Powertrain Coolant Pump harness is open or shorted
- Electric Powertrain Coolant Pump circuit poor electrical connection
- Faulty Motor Control Module (Traction)
How to Fix the DTC P1D99 Acura?
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 P1D99 Acura 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 P1D99 Acura Code
1. What does the OBDII code P1D99 mean for an Acura?
P1D99 indicates an issue with the Electric Powertrain Coolant Pump Control Circuit, specifically an open or disconnected circuit.
2. What are the common symptoms of code P1D99 in an Acura?
Common symptoms include the check engine light turning on, reduced powertrain performance, and potential overheating of the electric powertrain components.
3. What causes the P1D99 code in an Acura?
The most common causes are a faulty electric powertrain coolant pump, damaged wiring or connectors, or a malfunctioning powertrain control module (PCM).
4. Can I drive my Acura with the P1D99 code?
Driving with the P1D99 code is not recommended, as it may lead to overheating of the powertrain components, potentially causing further damage.
5. How is the P1D99 code diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the coolant pump wiring and connectors for damage, and test the pump's functionality.
6. How do you fix the P1D99 code on an Acura?
Repairs may involve replacing the electric powertrain coolant pump, repairing or replacing damaged wiring or connectors, or reprogramming the PCM if necessary.
7. How much does it cost to fix the P1D99 code on an Acura?
Repair costs can vary, but replacing the electric powertrain coolant pump typically ranges from $300 to $800, depending on parts and labor.
8. Can a weak battery cause the P1D99 code in an Acura?
A weak battery is unlikely to cause this code directly, but inadequate power supply to the pump could exacerbate the issue.
9. Does the P1D99 code always mean the coolant pump is bad?
No, the code could also indicate issues with wiring, connectors, or the PCM rather than the pump itself.
10. How can I prevent the P1D99 code from occurring in my Acura?
Regular maintenance, including inspecting the coolant pump and its wiring, can help prevent this code from appearing.
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