Ford F350 TSB: P1633 KAM Voltage Too Low From Bad Battery Terminal

Main Navigation

Advertisement
Social Connect
Resources
Our Brand Family
Tomorrow's Tech
Dedicated to Today's Automotive Students
Automotive

Ford F350 TSB: P1633 KAM Voltage Too Low From Bad Battery Terminal

Faulty battery terminals aren't always easy to spot with a visual inspection. Follow this Real Fix to see how a bad battery terminal causes a P1633 code.

Tomorrow's Technician Staff
By Tomorrow's Technician Staff
Tomorrow’s Tech (TT) delivers technical information for servicing today’s vehicles to more than 40,000 automotive students enrolled in more than 1,100 technical and vocational schools across the country.
Published:


Faulty battery terminals aren’t always easy to spot with a visual inspection. Follow this Real Fix to see how a bad battery terminal causes a P1633 code.

Related Articles

Model 

2000 Ford Pickup F350 Super Duty 6.8L

Complaint

The customer states the check engine light is on.

Cause

Connected a scan tool and found code P1633 – KAM Voltage Too Low. Performed a visual inspection of the battery power wiring harness and battery cable terminals and detected no obvious faults. Used a scan tool to observe the Parameter Identification Keep Alive Power (PID_KAPWR). Wiggle tested the battery cables to simulate road shock and found KAPWR varied as the positive battery cable was wiggled at the battery cable terminal. The results of these tests indicated the battery cable terminal was faulty.

Correction

Replaced the battery cable terminal, cleared codes, performed a road test and verified the vehicle operated properly. The check engine light did not illuminate and no fault codes returned.

Courtesy of Mitchell 1 SureTrack Real Fixes.

You May Also Like

Automotive

ADAS False Activation Evolution

Since 2006, advanced driver assistance systems (ADAS) have evolved from active cruise control to autonomous driving controls.

Andrew Markel
By Andrew Markel
Published:

The average age of a driver in the US is 47 years old. If a driver started at 16, they have seen more than three decades of automotive technology changes. In 2008, ABS became a standard feature on most vehicles. By 2012, stability control, or rollover mitigation, had become standard for vehicles. Since 2006, advanced driver assistance systems (ADAS) have evolved from active cruise control to autonomous driving controls.

Read Full Article

More Automotive Posts
Crankshaft Counterweights And Balancing

Imbalance in the engine exhibits vibration and damage. Balancing becomes critical to any engine build.

By Eric Garbe
Diagnosing Misfires

What if there are no codes and a misfire is intermittent? This is where it gets complicated. 

By Andrew Markel
The Importance Of ADAS Calibrations

Following best practices and using appropriate equipment ensure customer satisfaction and safety.

By Joe Keene
Fuel Pressure Diagnostic Service

Use a scan tool that can look at special direct fuel injection parameters and perform bidirectional tests.

By Andrew Markel

Other Posts

Why Do Vehicles Go Out Of Alignment?

If camber, caster or toe are out of specifications, there is usually a reason why.

By Tomorrow's Technician Staff
Battery Charging and Diagnostics

Here are six tips to use when diagnosing a vehicle with a dead battery. 

By Tomorrow's Technician Staff
Diagnostic Strategies For Stop/Start Systems

This function of the power management system uses several modules to decide when the engine needs to stop and start.

By Andrew Markel
CVT Transmission Service

Like any automatic transmission, the condition and level of fluid in a CVT unit will determine the performance.

By Tomorrow's Technician Staff