Communication DTCS (U Codes)
DIAGNOSTIC TROUBLE CODE CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U1009 | SCP (J1850) Invalid or Missing Data for Engine Torque | ABS/TC Module or Stability Assist Module | CARRY OUT the PCM self-test. |
| U1016 | SCP Invalid DATA (PCM) | Navigation System Module | REFER to ELECTRONIC FEATURE GROUP . |
| U1027 | SCP (J1850) Invalid or Missing Data for Engine RPM | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1027 | SCP (J1850) Invalid or Missing Data for Engine RPM | PCM | CARRY OUT the PCM self-test. |
| U1027 | SCP (J1850) Bus Invalid or Missing Data for Engine RPM | ABS/TC Module or Stability Assist Module | CARRY OUT the ABS/TC Control Module/Stability Assist Module self-test. |
| U1027 | SCP (J1850) Bus Invalid or Missing Data for Engine RPM | FEM | CARRY OUT the FEM self-test. |
| U1040 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | FEM | CARRY OUT the FEM self-test. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | REM | CARRY OUT the REM self-test. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | DDM | CARRY OUT the DDM self-test. |
| U1041 | SCP (J1850) Invalid or Missing Data for Vehicle Speed | Instrument Cluster | CARRY OUT the instrument cluster self-test. |
| U1051 | SCP (J1850) Invalid or Missing Data for Brakes | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1053 | SCP (J1850) Invalid or Missing Data for Steering or Steering Wheel | PCM | CARRY OUT the PCM self-test. |
| U1058 | SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL | PCM | CARRY OUT the PCM self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL | ABS/TC Module or Stability Assist Module | CARRY OUT the ABS/TC Module or Stability Assist Module self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL | FEM | CARRY OUT the FEM self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL | REM | CARRY OUT the REM self-test. |
| U1059 | SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL | DDM | CARRY OUT the DDM self-test. |
| U1073 | SCP (J1850) Invalid Or Missing Data for Engine Coolant | ABS/TC Module 6r Stability Assist Module | CARRY OUT the ABS/TC Module or Stability Assist Module self-test. |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | PCM | REFER to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE . |
| U1073 | SCP (J1850) Invalid or Missing Data for Engine Coolant | Instrument Cluster | REFER to INSTRUMENTATION AND WARNING SYSTEMS . |
| U1083 | SCP (J1850) Invalid or Missing Data for Engine Systems Other | PCM | CARRY OUT the PCM self-test. |
| U1098 | SCP (J1850) Invalid or Missing Data for Vehicle Speed Control | PCM | CARRY OUT the PCM self-test. |
| U1123 | SCP (J1850) Invalid or Missing Data for Odometer | Instrument Cluster | CARRY OUT the instrument cluster self-test. |
| U1123 | SCP (J1850) Invalid or Missing Data for Odometer | Message Center | CARRY OUT the Message Center self-test. |
| U1134 | SCP (J1850) Invalid or Missing Data Ignition Switch/Starter | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1136 | SCP (J1850) Invalid or Missing Data for Telltales | PCM | CARRY OUT the PCM self-test. |
| U1147 | SCP (J1850) Invalid or Missing Data for Vehicle Security System | ABS/TC Module or Stability Assist Module | CARRY OUT the ABS/TC Module or Stability Assist Module self-test. |
| U1147 | SCP (J1850) Invalid or Missing Data for Vehicle Security System | PCM, Instrument Cluster | CARRY OUT the PCM or Instrument Cluster self-test. |
| U1218 | SCP (J1850) Invalid or Missing Data for External Lamps | FEM, REM | CARRY OUT the FEM and REM self-test. |
| U1222 | SCP (J1850) Invalid or Missing Data for Interior Lamps | FEM | CARRY OUT the FEM self-test. |
| U1243 | SCP (J1850) Invalid or Missing Data for Exterior Environment | PCM | REFER to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE . |
| U1262 | SCP (J1850) Communication Bus Fault | Electronic Parking Brake Module | CARRY OUT the electronic parking brake module self-test. |
| U1262 | SCP (J1850) Communication Bus Fault | Network Fault | REFER to COMMUNICATIONS NETWORK . |
| U1262 | SCP (J1850) Communication Bus Fault | Instrument Cluster | REFER to COMMUNICATIONS NETWORK . |
| U1262 | SCP (J1850) Communication Bus Fault | ABS/TC Module Or Stability Assist Module | REFER to COMMUNICATIONS NETWORK . |
| U1262 | SCP (J1850) Communication Bus Fault | Message Center | GO to PINPOINT TEST O: NO STANDARD CORPORATE PROTOCOL (SCP) NETWORK COMMUNICATION . |
| U1430 | SCP (J1850) Invalid Data for Function Read Fuel System | Message Center | CARRY OUT the Message Center self-test. |
| U1751 | SCP (J1850) SCLM System Status Missing From REM | Instrument Cluster | CARRY OUT the REM self-test. |
| U1752 | SCP (J1850) SCLM System Status Missing From FEM | Instrument Cluster | CARRY OUT the FEM self-test. |
| U1901 | CAN Network #2 Communication BUS Fault Receive Error | ABS/TC Module or Stability Assist Module | CARRY OUT the ABS/TC Control Module or Stability Assist self-test. |
| U1950 | UBP Communication Bus Fault | Parking Aid Module | GO to PINPOINT TEST S: THE PARKING AID MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL . |
| U2003 | Audio CD/Disc Jockey is Not Responding | ACM | U2003 is retrieved if CD/DJ is not present, disconnected, or inoperative. REFER to ENTERTAINMENT SYSTEM . |
| U2003 | Audio CD/DJ is Not Responding | Navigation System Module | U2003 is retrieved if CD/DJ is not present, disconnected, or inoperative. REFER to ENTERTAINMENT SYSTEM . |
| U2005 | Audio Rear Integrated Control Panel Unit is Not Responding | Navigation System Module |
NOTE:
U2005 is retrieved if RICP is not present, disconnected, or inoperative. REFER to ENTERTAINMENT SYSTEM
.
|
| U2306 | Transmission PRNDL Range Selected Status Invalid | Parking Aid Module | REFER to INSTRUMENTATION AND WARNING SYSTEMS . |
| U2008 | Audio Phone is Not Responding | ACM | REFER to ENTERTAINMENT SYSTEM . |
| U2150 | SCP (J1850) Invalid Data From REM | Instrument Cluster | CARRY OUT the REM self-test. |
| U2152 | SCP (J1850) Invalid Data From FEM | Instrument Cluster | CARRY OUT the FEM self-test. |
| U2195 | SCP (J1850) Invalid DATA From SCLM | Instrument Cluster | CARRY OUT the instrument cluster self-test. |
| U2362 | UBP Invalid Data From Node ID $98 | Climate Control Seat Module | REFER to SEATING . |