Body Control System Diagnostic System Check

Connect scan tool to Data Link Connector (DLC). See Figure . If scan tool powers up, go to next step. If scan tool does not power up, go to SCAN TOOL DOES NOT POWER UP .
Turn ignition on. Attempt to establish communication with Dash Integration Module (DIM), Instrument Panel Module (IPM) and Rear Integration Module (RIM). If scan tool communicates with all 3 modules, go to next step. If scan tool does not communicate with all 3 modules, go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE .
Display DTCs function on scan tool for DIM, IPM and RIM. If scan tool displays any DTCs for these modules, go to next step. If scan tool does not display any DTCs for these modules, attempt to diagnose malfunctioning system or device by symptom. Go to appropriate article for malfunctioning system or device.
If scan tool displays any DTCs that begin with "U", go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE . If scan tool does not display any DTCs that begin with "U", go to next step.
If scan tool displays DTC B1000, B1004, B1007, B1009, B1652, B1656, B1658 or B1805, go to BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION table. If scan tool does not display any DTCs listed, go to next step.
If scan tool displays DTC B1327 or B1328 go to BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION table. If scan tool does not display any DTCs listed, attempt to diagnose malfunctioning system or device by symptom. Go to appropriate article for malfunctioning system or device.

BODY CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

DTC ⁽¹⁾

Module

Description

B0159 ⁽³⁾

IPM

Outside Air Temperature Sensor Circuit

B0164 ⁽³⁾

IPM

Passenger Compartment Temperature Sensor No. 1

B0174 ⁽³⁾

IPM

Outside Air Temperature Sensor No. 1

B0179 ⁽³⁾

IPM

Outside Air Temperature Sensor No. 2

B0184 ⁽³⁾

IPM

Solar Load Sensor No. 1

B0189 ⁽³⁾

IPM

Solar Load Sensor No. 2

B0248 ⁽³⁾

IPM

Mode Door Inoperative Error

B0249 ⁽³⁾

IPM

Heater/Defrost/A/C Door Inoperative Error

B0268 ⁽³⁾

IPM

A/I Door Inoperative Error

B0269 ⁽³⁾

IPM

Air Inlet Door Range Error

B0408 ⁽³⁾

IPM

Temperature Control No. 1 Circuit Malfunction

B0409 ⁽³⁾

IPM

Air Mix Door No. 1 Range Error

B0419 ⁽³⁾

IPM

Air Mix Door No. 2 Range Error

B0423 ⁽³⁾

IPM

Air Mix Door No. 2 Inoperative Error

B0428 ⁽³⁾

IPM

Air Mix Door No. 3 Inoperative Error

B0429 ⁽³⁾

IPM

Temperature Control No. 3 Rear Circuit Range/Performance

B0510 ⁽³⁾

IPM

RH Panel Discharge Temp Sensor Failure

B0515 ⁽³⁾

IPM

RH Heater Discharge Temp Sensor Failure

B0520 ⁽³⁾

IPM

Rear Discharge Temp Sensor Failure

B1000 ⁽³⁾

IPM

Loss of KDD Main Control Head

B1000

IPM

ECU Malfunction

B1004

IPM

Keep Alive Memory (KAM)

B1007

DIM, RIM

EEPROM Write Error

B1009

DIM, RIM

EEPROM Checksum Error

B1013

IPM

ROM Checksum Error

B1014

IPM

Program ROM Checksum Error

B1327

IPM, DIM, RIM

Device Power Circuit Low

B1328

DIM, RIM

Device Power Circuit High

B1390

DIM

Battery Voltage Sense Failure

B1422

DIM

Device Power Moding Malfunction

B1656

N/A

EEPROM Write Error

B1658

N/A

EEPROM Checksum Error

B2556 ⁽²⁾

IPM

Interior Light Rheostat Circuit Range

B2641 ⁽²⁾

IPM

Delayed Exterior Lighting Control Circuit Range

B2646 ⁽²⁾

IPM

Ambient Light Sensor Circuit Range

B2805 ⁽⁴⁾

IPM

Steering Wheel Controls HVAC Switch Circuit Malfunction

B2810 ⁽⁴⁾

IPM

Steering Wheel Controls Entertainment Circuit Malfunction

C0625 ⁽⁵⁾

RIM

Level Control Suspension Sensor Malfunction

C0628 ⁽⁵⁾

RIM

Level Control Position Sensor Circuit High

C0655 ⁽⁵⁾

RIM

Level Control Compressor Relay Malfunction

C0658 ⁽⁵⁾

RIM

Level Control Compressor Relay High

C0660 ⁽⁵⁾

RIM

Level Control Exhaust Valve Circuit Malfunction

C0663 ⁽⁵⁾

RIM

Level Control Exhaust Valve Circuit High

P1531 ⁽⁶⁾

DIM

A/C Temperature Circuit Malfunction

P1536 ⁽⁶⁾

DIM

Engine Coolant Overtemperature

P1540 ⁽⁶⁾

DIM

Air Conditioning Refrigerant Overpressure

U1000 ⁽⁷⁾

DIM, IPM, RIM

Loss Of Communications

U1016 ⁽⁷⁾

DIM, IPM, RIM

Loss Of Communications With PCM

U1064 ⁽⁷⁾

IPM, RIM

Loss Of Communications With DIM

U1065 ⁽⁷⁾

DIM, RIM

Loss Of Communications With IPM

U1066 ⁽⁷⁾

IPM

Loss Of Communications With RIM

U1160 ⁽⁷⁾

RIM

Loss Of Communications With DDM

U1161 ⁽⁷⁾

RIM

Loss Of Communications With PDM

U1162 ⁽⁷⁾

RIM

Loss Of Communications With LRDM

U1163 ⁽⁷⁾

RIM

Loss Of Communications With RRDM

U1164 ⁽⁷⁾

DIM, RIM

Loss Of Communications With DDS

U1300 ⁽⁷⁾

DIM, IPM, RIM

Class 2 Short To Ground

U1301 ⁽⁷⁾

DIM, IPM, RIM

Class 2 Short To Battery

⁽¹⁾	Go to appropriate diagnostic and repair procedure under DIAGNOSTIC TESTS .

⁽²⁾	Go to appropriate diagnostic procedure under DIAGNOSTIC TESTS in AUTOMATIC TWILIGHT SENTINEL - DEVILLE article.

⁽³⁾	Go to appropriate diagnostic procedure in AUTOMATIC A/C-HEATER SYSTEMS - SEVILLE article in AIR CONDITIONING & HEATING.

⁽⁴⁾	Go to appropriate diagnostic procedure under DIAGNOSTIC TESTS in STEERING COLUMN SWITCHES - DEVILLE article.

⁽⁵⁾	Go to appropriate article in SUSPENSION.

⁽⁶⁾	Go to appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

⁽⁷⁾	Go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE .