Communication between the ICE module andSID unit
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Communication between the ICE module and
SID unit
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1.
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Plug in the scan tool and select
"READ FAULT CODES" from the menu. If any trouble codes are present, continue on
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2.
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If no trouble codes are present, plug in a BOB and connect a voltmeter across
connector pins 37 and 70.
Select "ACT. INSTR. FUNCT" on the scan tool and then "SID OUTPUT" in order to
make the output high and low.
The voltmeter readings should be:
about 0 V with the ignition switch "ON".
about 12 V with the ignition switch "OFF".
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3.
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If they are not, connect the SID unit to the BOB and check the lead for
continuity/shorting between the ICE module and the SID unit with both control modules
disconnected.
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