CODES U1016 & U1055 1999 S-10 2.2

With all those codes, you need a good auto-electrician with a $5,000 pro grade scan tool computer. Most of this is Body Control Module issues.

U0141 Lost Communication With Body Control Module "A"

https://www.obd-codes.com > u0141
Code U0141 pertains to the BCM "A" or the wiring to the BCM from the engine control module (ECM). The code, depending on the year, make and model of the ...

U1403 - Implausible Fuel Level Signal Received - Engine ...https://www.engine-codes.com > u1403'What is U1403 code meaning? ... The Fuel Level Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the fuel level message to the ...

U110C CHRYSLER Code - Lost Fuel Level Messagehttps://www.engine-codes.com > u110c_chrysler'What is U110C CHRYSLER code meaning? ... The Fuel Level Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the fuel level ...

U110E CHRYSLER Code - Lost Ambient Temperature Messagehttps://www.engine-codes.com > u110e_chrysler'What is U110E CHRYSLER code meaning? ... The Ambient Temperature Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the ambient ...

Code U0100 stands for Lost Communication with ECM/PCM. The powertrain control module (PCM) is the computer responsible for engine management. Like the other computers (known as modules) onboard your vehicle, the PCM communicates over a bus.U0100 - OBD II Trouble Code: Lost Communication with ECM ...

Try resetting it with the door key on the drivers door. lock it and unlock it with the door open.

It wouldn't be a ground problem If it were the whole instrument cluster would be dead . Checking the BCM an the IPC for DTC'S - diagnostic trouble codes is the proper way to diagnose this type problem . Not worrying about grounds .
Odometer
The vehicle odometer is calculated and stored electronically in the body control module (BCM) and is sent via the serial data circuit to the instrument panel cluster (IPC) for display. The BCM calculates and stores the mileage based on the vehicle speed serial data information from the PCM/ECM. The IPC displays the season odometer information from the BCM in the driver information center (DIC). The odometer will display error if the IPC detects an invalid odometer data from the BCM. After an invalid odometer data is received from the BCM, the IPC will display the last known odometer reading for 1.5 seconds before error is displayed in the DIC.
Speedometer
The instrument panel cluster (IPC) displays the vehicle speed based on serial data message from the body control module (BCM). The BCM receives vehicle speed data from the PCM/ECM via the serial data circuit. The speedometer will default to 0 km/h (0 mph) if:
• The PCM/ECM detects a malfunction in the vehicle speed sensor circuit.
• The BCM detects a loss of serial data communications with the PCM/ECM.
• The IPC detects a loss of serial data communications with the BCM.

Your best bet would be to take it to the dealer !

DTC U1001-U1254 Loss of Communications
Powertrain Control Module (PCM) U1016

Vehicle not starting an running ?
Do you know anything about GM class 2 serial data network .

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring (Node Alive messages). A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module's Node Alive message. Each module on the class 2 serial data circuit which is powered and performing functions that require detection of a communications malfunction is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 10 seconds, a DTC U1016
The control module ID number list below provides a method for determining which module is not communicating. A module with a class 2 serial data circuit malfunction or which loses power during the current ignition cycle will have a Loss of Communication DTC set by other modules that depend on information from that failed module. The modules that can communicate will set a DTC indicating the module that can not communicate.
Control Module
ID Number
Powertrain Control Module (PCM)
016
Electronic Brake Control Module (EBCM)
040
Body Control Module (BCM)
064
Sensing and Diagnostic Module (SDM)
088
Instrument Panel Cluster (IPC)
096

Do you know how to do a loaded circuit test for the power an ground circuits for that module ?


The Trainer 61 DTC Diagnostics Pt1 How The ECM Thinks

ECM Inputs and Outputs Diagnosis

Malissa, I believe this may mean the the computer may have to be re calibrated. You will have to find a good tech.,( possibly dealership) with the appropriate equipment to diagnose and estimate repair.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Alarm box ? You mean anti-theft system ?
The Passlock?"¢ System is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. If starting is attempted without authorization from the Passlock?"¢ System, the powertrain control module (PCM) will disable engine starting. Start disable may be in the form of fuel disable or starter disable, depending on engine application.
The components of the Passlock?"¢ System are as follows:
?€¢
The ignition lock cylinder and key

?€¢
The ignition lock cylinder case, including the Passlock?"¢ sensor

?€¢
The ignition switch

?€¢
The body control module (BCM)

?€¢
The security indicator on the instrument cluster

?€¢
The powertrain control module (PCM)

Body Control Module (BCM)
The body control module (BCM) contains the logic of the Theft Deterrent System. The BCM provides the battery positive voltage to operate the Pass lock" sensor. The BCM also measures the voltage of the security sensor signal circuit. The voltage measured will indicate whether the Pass lock sensor has been activated and whether the resistance value from the sensor is a valid value or the tamper value. If voltage measured is in the valid range, the BCM compares this voltage, voltage code, to a previously learned voltage code. If the voltage codes match, the BCM sends a class 2 message containing a password to the powertrain control module (PCM). If the voltage codes do not match, or the voltage is in the tamper range, or there is a circuit fault, the BCM will not send the correct password to the PCM, and the vehicle will not start.
there is nothing you can do , if your vehicle won't start you need to take it to the dealer or a ASE certified repair shop. Messing with the anti-theft system may render your vehicle useless .
There

What type scan tool are you using ? or are you using a code reader ? The SECRUITY -anti-theft system codes are stored in the BCM not the PCM !You need a factory scan tool or a professional grade one to check Body Control Module DTC'S -diagnostic trouble codes !
The theft deterrent system has been incorporated into the body control module (BCM). The theft deterrent is provided in order to prevent the vehicle operation if the correct key is not used in order to start the vehicle. The ignition key turns the lock cylinder. The cylinder rotation produces an analog voltage code in the Passlock?"¢ sensor. This voltage code is received by the BCM. The BCM compares the voltage code to the previously learned voltage code. If the codes match, a class 2 message is sent from the BCM to the powertrain control module (PCM)/vehicle control module (VCM). The message enables the fuel injectors.

so many codes suggest a problem ECM or BCM
check for all ground points , battery connections and harness connections to the computer units

U codes pertain to the class 2 serial data network . A dead module ,a short on the network will bring down the network - no communications between modules = no start problems .
Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for State of Health monitoring. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. When a module does not associate an identification number with at least one critical parameter within 5 seconds of beginning serial data communication, DTC U1000 or U1255 DTC is set. When more than one critical parameter does not have an identification number associated with it, the DTC will only be reported once. The class 2 serial data line on this vehicle is a star configuration. The following modules communicate on the class 2 serial data line:
• The body control module (BCM)
• The electronic brake control module (EBCM)
• The inflatable restraint sensing and diagnostic module (SDM)
• The instrument panel cluster (IPC)
• The powertrain control module (PCM)
• The radio
• The remote control door lock receiver (RCDLR)
• The vehicle communication interface module (VCIM)

Look's like a communication problem with the PCM & EBCM !
Powertrain Control Module (PCM)
U1016
Electronic Brake Control Module (EBCM)
U1041
Diagnostic Aids
• An intermittent open between a module and a star connector may cause this DTC to set.
• A poor connection at a module or a star connector may cause this DTC to set.
• An intermittent open in a star connector may cause this DTC to set.
• An open voltage or ground circuit to a module may cause this DTC to set.
• An internal module malfunction may cause this DTC to set.


012 GM Class II Communications

dealer repair as it may be 1 of 3 things to be replaced:
1 - Body Control Module (BCM) 1 - Instrument Panel Cluster (IPC) 1 - Sensor Diagnostic Module (SDM)

If the BCM or SDM has to be replaced the dealer will have to reprogram them to match your vehicles specifications. The instrument panel can be replaced by the vehicle owner with a few turns of a screwdriver and such