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AutoCodes - Generic - P1601

P1601 Code - Serial Communication Malfunction

- Code Popularity: 46,249 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1601?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Serial Communication lost between Engine Control Module (ECM) and other control units
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How to Fix the DTC P1601?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1601 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1601 Description

CAN data bus, Engine Control Module (ECM)/Antilock Brake System (ABS)/Traction Control System (TCS)/Instrumentation Control Module/Diagnostic Control Module – some communication lost

OBDII Code P1601 - Serial Communication Malfunction - AutoCodes.com
P1601 Code - Serial Communication Malfunction

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Information for Specific Makes

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Code P1601 comments

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