OBDII Code List

P1823 CADILLAC - Internal Mode Switch Circuit 'P' Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Internal Mode Switch
  • Internal Mode Switch harness is open or shorted
  • Internal Mode Switch circuit poor electrical connection

Possible symptoms

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

P1823 Cadillac Description

With the engine runtime over 5 seconds, system voltage from 8-18v, Fuel Cutoff inactive, engine torque from 30-148 ft-lb (40-200 Nm), the Powertrain Control Module (PCM) received an Internal Mode Switch (IMS) signal indicating PARK for 2 seconds, and then the IMS indicated a transitional state between Neutral and D4, conditions met for 5 seconds.
OBDII Code P1823 Cadillac - Internal Mode Switch Circuit 'P' Low -

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P1823 CADILLAC Comments

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