Please help, 3 problems.

Klaus · #9 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&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&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&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>

<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&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>

<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>

<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>

<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&RefDoc=792173">Circui t
Testing</A> and to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61965&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>

<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&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&RefDoc=792173">Testin g
for Intermittent and Poor Connections</A> and <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61973&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&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&RefDoc=792173">Testin g
for Intermittent and Poor Connections</A> and <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=61973&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&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>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>

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