Did you change any modules on the vehicle ?
B2900
VIN Mismatched
ABS Module
VERIFY that the module has the correct as-built data.
CHECK for correct powertrain control module (PCM) and ABS module configuration using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to Section 303-01A or Section 303-01B for the PCM. CLEAR the DTC. REPEAT the
C1805
Mismatched PCM and/or ABS/TC Module
ABS Module
CHECK for correct PCM and ABS module configuration using the diagnostic tool. RECONFIGURE the component as necessary. FOLLOW the diagnostic tool directions for the ABS module configuration or REFER to Section 303-01A or Section 303-01B for the PCM. CLEAR the DTC. REPEAT the self-test.
U1073
SCP (J1850) Invalid or Missing Data for Engine Coolant
PCM
REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1262
SCP (J1850) Communication Bus Fault
Network Fault
REFER to Section 418-00 .
Can a scan tool communicate with all the modules on the vehicle ?
- The anti-lock brake system (ABS) module or stability assist module (if equipped) does not respond to the diagnostic tool
- Circuit or connection in the standard corporate protocol (SCP) network.
- ABS module.
U1123
Invalid or Missing Data For Odometer
Instrument Cluster
Go To Pinpoint Test G .
U1059
SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL
PCM
REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
U1041
SCP (J1850) Invalid Or Missing Data For Vehicle Speed
Instrument Cluster
REFER to Section 413-01 .
U1041
SCP (J1850) Invalid Or Missing Data For Vehicle Speed
Tire Pressure Monitoring System Module
REFER to Section 204-04 .
You need to take it to the dealer , not a transmission shop. Your vehicle could have a ground issue , could have power issue , could have a control module issue . It needs to be hooked up to the factory scan tool ! It is for sure it has a communication problem on the SCP data bus , do you know what serial data communication is ?
The vehicle has 3 module communication networks:
- the standard corporate protocol (SCP) communications network
- the international standards organization (ISO) 9141 communications network
- the universal asynchronous receiver-transmitter (UART) based protocol (UBP) communications network
The diagnostic tool connects to all 3 networks through the data link connector (DLC). This makes diagnosis and testing of these systems easier by allowing one diagnostic tester to be able to diagnose and control any module on the 3 networks from one connector. The DLC can be found under the instrument panel between the steering column and the radio.
The SCP communications network will remain operational even with the severing of one of the bus wires. Communications will also continue if one of the bus wires is shorted to ground or voltage, or if some but not all termination resistors are lost. The SCP communications network allows inter-module communication.
The ISO 9141 communications network does not permit intermodule communication. When the diagnostic tool communicates to modules on the ISO 9141 communication network, the diagnostic tool must request all information, or initiate module commands.
The ISO 9141 communications network will not function if the wire is shorted to ground or battery voltage. Also, if one of the modules on the ISO 9141 communications network loses power or shorts internally, communications to that module will fail.
The UBP communications network will not function if the wire is shorted to ground or voltage. The UBP is different from the ISO communication network in that it allows intermodule communication.
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