AutoCodes – Acura – P1D74 Acura

P1D74 Acura Code - Generator Motor Temperature Sensor Range/Performance Problem Low

Quick Answer

The motor control module (generator) detects the generator motor temperature with a generator motor temperature sensor installed in the generator motor. Common causes include Faulty Generator Motor Temperature Sensor, Generator Motor Temperature Sensor harness is open or shorted, Generator Motor Temperature Sensor 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: P1D74 Acura indicates Generator Motor Temperature Sensor Range/Performance Problem Low.
Common causes: Common causes include Faulty Generator Motor Temperature Sensor, Generator Motor Temperature Sensor harness is open or shorted, Generator Motor Temperature Sensor 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 920

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D74 Acura Description

The motor control module (generator) detects the generator motor temperature with a generator motor temperature sensor installed in the generator motor. The motor control module (generator) detects a malfunction and stores a DTC when the generator motor temperature sensor value does not change from the initial value continuously for the prescribed time though the generator motor is under load.

OBDII Code P1D74 Acura - Generator Motor Temperature Sensor Range/Performance Problem Low - AutoCodes.com — P1D74 Acura Code - Generator Motor Temperature Sensor Range/Performance Problem Low

What does this mean?

What are the Possible Causes of the DTC P1D74 Acura?

Faulty Generator Motor Temperature Sensor
Generator Motor Temperature Sensor harness is open or shorted
Generator Motor Temperature Sensor circuit poor electrical connection
Faulty Motor Control Module (Generator)

How to Fix the DTC P1D74 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 P1D74 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.

Need more information about the P1D74 Acura 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 P1D74 Acura Code

1. What does the OBDII code P1D74 mean on an Acura?

P1D74 indicates a "Generator Motor Temperature Sensor Range/Performance Problem Low," meaning the temperature sensor for the generator motor is reading outside its expected range, typically too low.

2. What are the common symptoms of the P1D74 code in an Acura?

Symptoms may include the Check Engine Light turning on, reduced hybrid system performance, poor fuel efficiency, or limited power output.

3. What causes the P1D74 code to appear on an Acura?

Common causes include a faulty generator motor temperature sensor, damaged wiring or connectors, or an issue with the hybrid control module.

4. Can I drive my Acura with the P1D74 code active?

Driving is possible but not recommended, as it could lead to reduced performance and potential damage to the hybrid system if the issue isnâ€™t addressed promptly.

5. How is the P1D74 code diagnosed in an Acura?

A technician will use a scan tool to confirm the code, inspect the generator motor temperature sensor, and check for wiring or connector issues. They may also test the sensor's signal and resistance.

6. How do you fix the P1D74 code on an Acura?

Repairs may involve replacing the faulty generator motor temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming the hybrid control module if needed.

7. What tools are needed to troubleshoot the P1D74 code?

Diagnostic tools like an OBDII scanner, a multimeter, and potentially an oscilloscope are required to check sensor performance and wiring integrity.

8. How much does it cost to repair the P1D74 code on an Acura?

Repair costs vary but may range from $100 to $400 depending on whether the issue is with the sensor, wiring, or control module.

9. Can a weak or dead battery cause the P1D74 code?

While unlikely, power supply issues to the sensor or hybrid system could potentially lead to incorrect readings and trigger the code.

10. How can I prevent the P1D74 code from reoccurring?

Ensure regular maintenance of the hybrid system, inspect wiring and connectors for wear, and address any warning lights promptly to avoid long-term issues.