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Home >> Cadillac >> 1996 >> Seville STS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1604 - Loss Of Instrument Panel Cluster Serial Data >> Circuit Description

Circuit Description

This test checks for loss of or invalid Instrument Panel Cluster (IPC) serial data to the PCM. When such condition exists for 11 seconds, DTC will set.

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