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Power Tilt/Telescoping Steering Column 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 under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - DEVILLE article.
Turn ignition on. Attempt to establish communication with Steering Column Tilt/Telescoping Control Module (SCCM). If scan tool does not communicate with SCCM, go to next step. If scan tool communicates with SCCM, go to step 4 .
Operate tilt/telescoping steering column switch in all directions. If steering column moves, go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - DEVILLE article. If steering column does not move, go to STEERING COLUMN TILT/TELESCOPING INOPERATIVE under SYSTEM TESTS.
Using scan tool, select DISPLAY DTCs function for SCCM. If any DTCs are set, go to next step. If no DTCs are set, attempt to diagnose by symptom. See SYSTEM TESTS .
If scan tool does not display any DTCs that begin with "U", go to next step. If scan tool displays any DTCs that begin with "U", go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - DEVILLE article.
If scan tool displays DTC B1007 or B1009, go to DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article. If scan tool does not display DTC B1007 or B1009, go to next step.
If scan tool displays DTC B1327 or B1328, go to DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article. If scan tool does not display DTC B1327 or B1328, go to STEERING COLUMN TILT/TELESCOPING CONTROL MODULE DIAGNOSTIC TROUBLE CODES table.

MEMORY SEAT MODULE DIAGNOSTIC TROUBLE CODES

DTC ⁽¹⁾

Description

B1007

⁽²⁾ EEPROM Write Error

B1009

⁽²⁾ EEPROM Checksum Error

B1327

⁽²⁾ Device Power Circuit Low

B1328

⁽²⁾ Device Power Circuit High

Driver Seat Front Up Switch Circuit Malfunction

Driver Seat Front Down Switch Circuit Malfunction

Driver Seat Rear Up Switch Circuit Malfunction

Driver Seat Rear Down Switch Circuit Malfunction

Driver Seat Assembly Forward Switch Circuit Malfunction

Driver Seat Assembly Rearward Switch Circuit Malfunction

Driver Recline Forward Switch Circuit Malfunction

Driver Recline Rearward Switch Circuit Malfunction

Driver Recline Sensor Circuit Malfunction

Driver Lumbar Forward Switch Circuit Malfunction

Driver Lumbar Rearward Switch Circuit Malfunction

⁽³⁾ Driver Lumbar Up Switch Circuit Malfunction (Without AM3)

⁽³⁾ Driver Lumbar Up Switch Circuit Malfunction (With AM3)

⁽³⁾ Driver Lumbar Down Switch Circuit Malfunction (Without AM3)

⁽³⁾ Driver Lumbar Down Switch Circuit Malfunction (With AM3)

Driver Lumbar Horizontal Sensor Circuit Malfunction

⁽³⁾ Driver Lumbar Vertical Sensor Circuit Malfunction (Without AM3)

⁽³⁾ Driver Lumbar Vertical Sensor Circuit Malfunction (With AM3)

Driver Belt Tower Up Switch Circuit Malfunction

Driver Belt Tower Down Switch Circuit Malfunction

Driver Belt Tower Sensor Circuit Malfunction

Driver Front Vertical Sensor Circuit Malfunction

Driver Rear Vertical Sensor Circuit Malfunction

Driver Seat Assembly Horizontal Sensor Circuit Malfunction

Driver Memory 1 Select Switch Circuit Low

Driver Memory 2 Select Switch Circuit Low

Memory Set Switch Failed Low

Driver Memory Exit Switch Circuit Low

Memory Seat Module Over Current

U1000

⁽⁴⁾ Loss Of PCM Class 2 Serial Data Communication

U1305

⁽⁴⁾ Class 2 Short To Battery/Ground

⁽¹⁾	See appropriate procedure under DIAGNOSTIC TESTS .

⁽²⁾	Go to appropriate test under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.

⁽³⁾	For option code definition, see REGULAR PRODUCTION OPTION CODES under DESCRIPTION.

⁽⁴⁾	Go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.

DOOR MODULE DIAGNOSTIC TROUBLE CODES

DTC

Description

B1004

⁽¹⁾ Keep Alive Memory (KAM)

B1007

⁽¹⁾ EEPROM Write Error

B1009

⁽¹⁾ EEPROM Checksum Error

B1327

⁽¹⁾ Device Power Circuit Low

B1328

⁽¹⁾ Device Power Circuit High

B1586

⁽²⁾ Mirror Horizontal Position Sensor Out Of Range/Open

B1591

⁽²⁾ Mirror Vertical Position Sensor Out Of Range/Open

B1697

⁽²⁾ Mirror Switch Input Shorted To Ground

B1702

⁽²⁾ Mirror Switch Input Shorted To Ground

B1707

⁽²⁾ Mirror Switch Input Shorted To Ground

B1712

⁽²⁾ Mirror Switch Input Shorted To Ground

B1717

⁽²⁾ Mirror Power Fold Control Switch Shorted To Ground

U1000

⁽³⁾ Loss Of PCM Class 2 Serial Data Communication

U1300

⁽³⁾ Class 2 Short To Ground

U1301

⁽³⁾ Class 2 Short To Battery

⁽¹⁾	Go to appropriate test under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.

⁽²⁾	See appropriate test under DIAGNOSTIC TESTS in POWER MIRRORS - DEVILLE article.

⁽³⁾	Go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.

STEERING COLUMN TILT/TELESCOPING CONTROL MODULE DIAGNOSTIC TROUBLE CODES

DTC ⁽¹⁾

Description

B1007

⁽²⁾ EEPROM Write Error

B1009

⁽²⁾ EEPROM Checksum Error

B1327

⁽²⁾ Device Power Circuit Low

B1328

⁽²⁾ Device Power Circuit High

Device Voltage Reference Output 1 Circuit Range Performance

Telescope Forward Switch Circuit Malfunction

Telescope Rearward Switch Circuit Malfunction

Telescope Position Sensor Range

Telescope Position Sensor Low

Tilt Up Switch Circuit Malfunction

Tilt Down Switch Circuit Malfunction

Tilt Position Sensor Range

Tilt Position Sensor Low

Tilt/Telescope Motor Over Current

Tilt/Telescope 4-Way Position Switch Circuit Malfunction

U1000

⁽³⁾ Loss Of Communications

U1016

⁽³⁾ Loss Of Communications With PCM

U1064

⁽³⁾ Loss Of Communications With DIM

U1064

⁽³⁾ Loss Of Communications With DDSA

U1305

⁽³⁾ Class 2 Short To Battery/Ground

⁽¹⁾	Go to appropriate test under DIAGNOSTIC TESTS .

⁽²⁾	Go to appropriate test under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.

⁽³⁾	Go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE under DIAGNOSTIC TESTS in BODY CONTROL MODULES - DEVILLE article.