AutoCodes - Ford - P1633 1999 FORD F150

P1633 1999 FORD F150 Code - Keep Alive Power Voltage Too Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P1633 1999 FORD F150 code possible causes

  • Open Keep Alive Power (KAPWR) circuit
  • Faulty Powertrain Control Module (PCM)

|How do I fix the P1633 1999 FORD F150 code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the P1633 1999 FORD F150 code

Labor: 1.0

The cost of diagnosing the P1633 1999 FORD F150 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1633 1999 FORD F150 code possible symptoms?

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

|P1633 1999 FORD F150 code 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 1999 Ford F150 - Keep Alive Power Voltage Too Low  - AutoCodes.com

|Need more information with the P1633 1999 FORD F150 code?

Need more information on how to fix the P1633 1999 FORD F150 code? Get Access to Factory Service Manuals

|Need help with a P1633 1999 FORD F150 code?

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|P1633 1999 FORD F150 code comments

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