Thread: Please help, 3 problems.
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Old 03-01-2004, 01:24 AM
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<TD align=middle width="50%">Document ID# 792173
2003 HUMMER
H2
</TD>
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<H1>Retained Accessory Power (RAP) Inoperative</H1>
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<TR>
<TH vAlign=bottom align=middle>


Step</P></TH>
<TH vAlign=bottom align=middle>


Action</P></TH>
<TH vAlign=bottom align=middle>


Yes</P></TH>
<TH vAlign=bottom align=middle>


No</P></TH></TR>
<TR>
<TD vAlign=bottom colSpan=4>


Schematic Reference: <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=56172&amp;RefDoc=792173">Retain ed
Accessory Power (RAP) Schematics</A> </P>


Connector End View Reference: <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62031&amp;RefDoc=792173">Master
Electrical Component List</A> in Wiring Systems </P></TD></TR>
<TR>
<TD vAlign=center align=middle>


1</P></TD>
<TD vAlign=top align=left>


Did you perform the Diagnostic System Check - Retained Accessory
Power?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step2
</P></TD>
<TD vAlign=bottom align=middle>


Go to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=56208&amp;RefDoc=792173">Diagno stic
System Check - Retained Accessory Power</A> </P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S02>


2</P></A></TD>
<TD vAlign=top align=left>
  1. <LI type=1>Close all of the doors.
    <LI type=1>Turn ON the ignition, with the engine OFF.
    <LI type=1>Turn OFF the ignition. </LI>


Do all the retained accessory power functions operate during the RAP
time?</P></TD>
<TD vAlign=bottom align=middle>


Go to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62112&amp;RefDoc=792173">Testin g
for Intermittent and Poor Connections</A> in Wiring Systems</P></TD>
<TD vAlign=bottom align=middle>


Go to Step3
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S03>


3</P></A></TD>
<TD>


Does only sunroof exhibit this symptom?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step5
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step4
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S04>


4</P></A></TD>
<TD>
  1. <LI type=1>Install a scan tool. Select diagnostic circuit check and then
    class2 power mode.
    <LI type=1>Close all of the doors.
    <LI type=1>Turn ON the ignition, with the engine OFF.
    <LI type=1>Wait 5seconds then turn the ignition OFF.
    <LI type=1>Wait the time-out for RAP. </LI>


Did the scan tool display the RAP power mode then time-out, and display
Off-Awake power mode?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step5
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step15
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S05>


5</P></A></TD>
<TD vAlign=top align=left>
  1. <LI type=1>Turn OFF the ignition.
    <LI type=1>Disconnect the sunroof relay.
    <LI type=1>Turn ON the ignition, with the engine OFF.
    <LI type=1>With a test lamp that is connected to a good ground, probe
    the battery positive voltage circuit of the sunroof relay. </LI>


Does the test lamp illuminate?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step6
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step12
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S06>


6</P></A></TD>
<TD>
  1. <LI type=1>Connect a test lamp between the relay coil circuits of the
    sunroof relay.
    <LI type=1>Turn the ignition ON, with the engine OFF. </LI>


Does the test lamp illuminate?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step9
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step7
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S07>


7</P></A></TD>
<TD>


Test the RAP supply voltage circuit for a short to ground or an
open.</P>


Turn the ignition ON, with the engine OFF, when testing for a short to
voltage. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62194&amp;RefDoc=792173">Circui t
Testing</A> and to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61965&amp;RefDoc=792173">Wiring
Repairs</A> in Wiring Systems.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step8
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S08>


8</P></A></TD>
<TD>


Test the sunroof relay ground circuit for an open. </P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step15
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S09>


9</P></A></TD>
<TD>
  1. <LI type=1>Connect a fused wire jumper across the relay switched
    circuits of the sunroof relay.
    <LI type=1>Turn the ignition ON, with the engine OFF.
    <LI type=1>Attempt to operate the sunroof. </LI>


Does the sunroof operate normally?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step11
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step10
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S10>


10</P></A></TD>
<TD vAlign=top align=left>


Repair the sunroof relay switch output circuit. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61965&amp;RefDoc=792173">Wiring
Repairs</A> in Wiring Systems.</P>


Did you complete the replacement?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=center align=middle>


--</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S11>


11</P></A></TD>
<TD vAlign=top align=left>


Inspect for poor connections at the sunroof relay. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62112&amp;RefDoc=792173">Testin g
for Intermittent and Poor Connections</A> and <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61973&amp;RefDoc=792173">Connec tor
Repairs</A> in Wiring Systems.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S12>


12</P></A></TD>
<TD>


Test the sunroof supply voltage circuit for a short to ground.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step13
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S13>


13</P></A></TD>
<TD vAlign=top align=left>


Repair the battery positive voltage circuit of the sunroof relay. Refer
to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61965&amp;RefDoc=792173">Wiring
Repairs</A> in Wiring Systems.</P>


Did you complete the repair?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=center align=middle>


--</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S14>


14</P></A></TD>
<TD vAlign=top align=left>


Replace the sunroof relay.</P>


Did you complete the replacement?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=center align=middle>


--</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S15>


15</P></A></TD>
<TD>


Inspect for poor connections at the harness connector of the BCM. Refer
to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62112&amp;RefDoc=792173">Testin g
for Intermittent and Poor Connections</A> and <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61973&amp;RefDoc=792173">Connec tor
Repairs</A> in Wiring Systems.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step16
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S16>


16</P></A></TD>
<TD>


<FONT color=brown>
<H4>Important:</H4>


Perform the module setup procedure if required.</P></FONT>


</P>


Replace the BCM. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=9193&amp;RefDoc=792173">Control
Module References</A> in Body Control System.</P>


Did you complete the procedure?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step17
</P></TD>
<TD vAlign=bottom align=middle>


--</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S17>


17</P></A></TD>
<TD vAlign=top align=left>


Operate the system in order to verify the repair.</P>


Did you correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


System OK</P></TD>
<TD vAlign=bottom align=middle>


Go to Step3
</P></TD></TR></TBODY></TABLE>
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<TD align=middle width="50%">Document ID# 792173
2003 HUMMER
H2
</TD>
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