There is no way of telling how much it will cost without following the trouble tree I posted. That code has nothing to do with the pass lock system though.I have seen that code caused by a bad battery though or someone that left there light's and ran the battery down.
B1327 - Device Power 1 Circuit Low
Battery voltage is supplied to the OnStar Communication Interface Module (CIM) by circuit 1640. This input is internally monitory by the CIM for proper operating voltage. The minimum voltage for proper operation is 9.0 volts, if circuit 1640 drops below 9.0 volts, this DTC will fail. DTC B1327 will remain current until system voltage is above 9.5 volts for 1.2 seconds. Under 8.5 volts, communication with OnStar system using scan tool will be disabled.
* Voltage on circuit 1640 is between 8.5 - 9.0 volts for 1.2 second s
* Illuminate the red OnStar LED.
* Check for poor connections at the CIM and instrument panel fuse block. Inspect harness for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connections (terminal crimped over insulation).
* If fault is suspected to be intermittent, moving harness wiring may help in locating fault.
Images (Click to enlarge)
Friday, December 31st, 2010 AT 3:05 AM