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Express 1500 LS, AWD
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DTC U1865: Fuel Operated Heater Lost Communication with Engine Control Module
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Circuit/System Verification
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Circuit/System Verification
Verify that U0100 is not set.
If the DTC is set, refer to
DTC U0100-U02FF (except U029D and U029E)
,
DTC U0100-U02FF (U029D and U029E only)
.