Power Inverter Diode
Installation
November 21, 2016
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AMBULANCE TYPE:
Demers Chevrolet Ambulances
UNITS AFFECTED:
63300-63349, 63360-63369, 63400-63457
Contact Fleet Operations for any questions or concerns
BC Ambulance Service, Fleet Operations
1 877 652-7465
Block C, 2261 Keating X Road
Fax: 250 952-0275
ISSUE:
GM Recall “42230 Shortened Powered Accessory Availability” reprograms the
vehicle’s PCM and BCM for the alternator to produce more voltage. This higher voltage
causes the ambulance power inverter to produce an “Over Voltage” trouble code,
causing the power inverter to stop working.
ACTION:
Install the supplied diode in the Power Inverter switch/sensor circuit at the
next A service or at the earliest opportunity.
LABOUR TIME:
Bill to BC Ambulance .2 HRS
LABOUR CODE: CMOID
Use the above labour code
on the invoice to identify this procedure has been
completed.
SERVICE PROCDURE:
Follow the picture instructions below. Be sure to read the complete instructions before
performing the modification.
Identify if the inverter you are working on is an option A or B.
Follow the corresponding instructions below for the affected option.
Inverter switch
wire location