AutoCodes – Nissan – P1650 Nissan

P1650 Nissan Code - Starter Motor Relay 2

Quick Answer

The Engine Control Module (ECM) controls ON/OFF state of the starter relay, according to the engine and vehicle condition. Common causes include Faulty Intelligent Power Distribution Module (IPDM) Engine Room (E/R), IPDM E/R harness is open or shorted, IPDM E/R 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: P1650 Nissan indicates Starter Motor Relay 2.
Common causes: Common causes include Faulty Intelligent Power Distribution Module (IPDM) Engine Room (E/R), IPDM E/R harness is open or shorted, IPDM E/R 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 20,748

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 Sep 18, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1650 Nissan Description

The Engine Control Module (ECM) controls ON/OFF state of the starter relay, according to the engine and vehicle condition. The ECM transmits a control signal to the Intelligent Power Distribution Module (IPDM) Engine Room (E/R) by CAN communication. Under normal conditions, the ECM controls and maintains the starter relay in OFF state during the following condition: The engine is running, the selector lever is D position. (CVT models), and the clutch pedal is fully released. (M/T models). When detecting a decrease in engine speed due to rapid deceleration or heavy load conditions, ECM controls and reactivates the starter relay. The IPDM E/R detects a control state of the starter relay and starter control relay and transmits a feedback signal to ECM via CAN communication. The Diagnostic Trouble Code (DTC) will set when the starter relay is stuck ON, the starter relay power supply circuit is an excessively high voltage, or the starter relay circuit is excessively low voltage.

OBDII Code P1650 Nissan - Starter Motor Relay 2 - AutoCodes.com — P1650 Nissan Code - Starter Motor Relay 2

What does this mean?

What are the Possible Causes of the DTC P1650 Nissan?

Faulty Intelligent Power Distribution Module (IPDM) Engine Room (E/R)
IPDM E/R harness is open or shorted
IPDM E/R circuit poor electrical connection

How to Fix the DTC P1650 Nissan?

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 does this mean?

Code Tech Notes

The Starter Motor Relay is part of the Intelligent Power Distribution Module (IPDM) Engine Room (E/R) and is not serviceable.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1650 Nissan 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 P1650 Nissan Code

1. What are the common symptoms of OBDII code P1650 in a Nissan related to Starter Motor Relay 2?

- Common symptoms include the engine not cranking when the key is turned, intermittent starting issues, and the starter motor not engaging.

2. What could cause the OBDII code P1650 related to Starter Motor Relay 2 in a Nissan to trigger?

- The code P1650 can be triggered by a faulty starter motor relay, a malfunctioning starter motor, wiring issues, or a problem with the ignition switch.

3. How can I diagnose the OBDII code P1650 in a Nissan indicating an issue with Starter Motor Relay 2?

- Diagnosis involves checking the starter motor relay for proper function, inspecting the starter motor for any faults, testing the wiring for continuity, and verifying the condition of the ignition switch.

4. Can a DIY enthusiast repair the OBDII code P1650 related to Starter Motor Relay 2 in a Nissan?

- Repairing the code P1650 may be possible for DIY enthusiasts with mechanical skills. However, it's recommended to have a professional diagnose and repair electrical issues to avoid further damage.

5. Is it safe to continue driving with the OBDII code P1650 indicating a problem with Starter Motor Relay 2 in a Nissan?

- It is not advisable to drive with the code P1650 present, as it can lead to potential starting issues or complete failure. It's best to address the problem promptly to prevent being stranded.

6. What are some tips for repairing the OBDII code P1650 in a Nissan related to Starter Motor Relay 2?

- Tips for repairing the code P1650 include checking and cleaning electrical connections, ensuring proper grounding, replacing the starter motor relay if necessary, and testing the system after any repairs.

7. How much does it typically cost to repair the OBDII code P1650 in a Nissan associated with Starter Motor Relay 2?

- The cost of repairing the code P1650 can vary depending on the root cause of the issue. Costs may include parts like a new starter motor relay or starter motor, and labor fees if professional assistance is required.

8. Can a weak battery cause the OBDII code P1650 related to Starter Motor Relay 2 to trigger in a Nissan?

- Yes, a weak or failing battery can potentially cause the code P1650 to trigger as it may not provide enough power for the starter motor to function properly.

9. Are there any preventive measures to avoid the OBDII code P1650 related to Starter Motor Relay 2 in a Nissan?

- Regularly checking the condition of the battery, performing routine maintenance on the starter system, and addressing any starting issues promptly can help prevent the code P1650 from occurring.

10. Can extreme weather conditions affect the OBDII code P1650 related to Starter Motor Relay 2 in a Nissan?

- Extreme temperatures can potentially impact the electrical components involved in the starter system, leading to issues that may trigger the code P1650. It's important to keep the vehicle well maintained in all weather conditions.