Santa Fe FWD V6-2.7L (2007)
Ground Strap: Customer Interest
Electrical - Voltage Drop Diagnostics
Group: ELECTRICAL
Number: 08-BE-004
Date: JUNE, 2008
Model: ALL
Subject:
DIAGNOSIS VOLTAGE DROP
DESCRIPTION:
Excessive resistance in high amperage circuits may result in one or more of the following symptoms:
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Blower motor speed slow down and the radio cycles off and on.
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Intermittent headlight dimming during deceleration.
This bulletin provides the procedure to diagnose and repair the vehicle wiring grounds.
SERVICE PROCEDURE:
1.
Start vehicle and turn on headlights (including high beam), air conditioning, and set the blower to maximum speed.
2.
Using a known good digital volt-ohm meter (DVOM), perform a voltage drop test on the positive battery cable, paying particular attention to the
leads to the Engine Room Junction Box (refer to photo). If the voltage drop is more than 0.2 volts on any of the leads, replace the Positive Battery
Cable.
3.
Perform voltage drop test on the negative battery cable. If the voltage drop is more than 0.2 volts, repair or replace the negative battery cable.
