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P1633 Lincoln Code - Keep Alive Power Voltage Too Low

- Code Popularity: 8,387 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1633 Lincoln?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Open Keep Alive Power (KAPWR) circuit
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC P1633 Lincoln?

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 P1633 Lincoln 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 P1633 Lincoln Description

The Keep Alive Power (KAPWR) provides a constant voltage input independent of the ignition switch state to the Powertrain Control Module (PCM). This voltage is used by the PCM to maintain the Keep Alive Memory (KAM). The Diagnostic Trouble Code (DTC) indicates that the Keep Alive Power circuit has experienced a power interrupt. Loss of Keep Alive Power to the Powertrain Control Module results in immediate Malfunction Indicator Lamp (MIL) illumination and sets DTC P1633.

OBDII Code P1633 Lincoln - Keep Alive Power Voltage Too Low  - AutoCodes.com
P1633 Lincoln Code - Keep Alive Power Voltage Too Low

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Code P1633 Lincoln comments

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