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P1604 Cadillac Code - Loss Of IPC Serial Data Conditions

- Code Popularity: 7,369 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1604 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Instrument Panel Cluster (IPC)
  • Instrument Panel Cluster harness is open or shorted
  • Instrument Panel Cluster circuit poor electrical connection
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How to Fix the DTC P1604 Cadillac?

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 P1604 Cadillac 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 P1604 Cadillac Description

With the engine running engine speed over 500 rpm for 10 continuous seconds, the Powertrain Control Module (PCM) detects an invalid serial data signal or no serial data from the Instrument Panel Cluster (IPC) to PCM for 11 seconds.

OBDII Code P1604 Cadillac - Loss Of IPC Serial Data Conditions - AutoCodes.com
P1604 Cadillac Code - Loss Of IPC Serial Data Conditions

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Code P1604 Cadillac comments

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