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System Testing

NOTE: Before beginning system testing, perform TROUBLE SHOOTING  .
NOTE: If NGS tester does not communicate with vehicle, refer to NGS tester manual.
NOTE: All Diagnostic Trouble Code (DTC) tests are for use with New Generation Star (NGS) scan tool. If a generic scan tool is used, ensure scan tool is certified OBD-II standard.
NOTE: A New Generation Star (NGS) tester is required to test the power door lock system.

Connect New Generation Star (NGS) tester to data link connector. Perform DATALINK DIAGNOSTIC TEST. See MODULE COMMUNICATIONS NETWORK article. If NGS tester responds with CKT 914, CKT 915 or CKT 70=ALL MODULES NO RESPONSE/NOT EQUIPPED, diagnose network concern. See MODULE COMMUNICATIONS NETWORK article. If NGS tester responds with, NO RESPONSE/NOT EQUIPPED for Driver Door Module (DDM), go to TEST A  under DIAGNOSTIC TESTS. If NGS tester responds with, NO RESPONSE/NOT EQUIPPED for Steering Column/Ignition/Lighting (SCIL) module, go to TEST B  under DIAGNOSTIC TESTS.

If NGS tester responds with SYSTEM PASSED for all modules, retrieve DTCs for all modules. If any DTCs exist, perform appropriate test. See appropriate DTC DEFINITIONS table. If no DTCs were retrieved, repair system by symptom. See SYMPTOM CHART  and perform appropriate test.

DTC DEFINITIONS

DTC Description Perform Test
B1322 Left Front Door Ajar Circuit Short To Ground (1)
B1342 ECU Defective (2)
B1396 Power Door Lock Circuit Short To Voltage (2)
B1525 Keyless Entry Circuit Short To Voltage DTC B1525 
B1529 Memory Set Switch Short To Voltage (3)
B1539 Driver Mirror Switch Assembly Circuit Failure (3)
B1549 Power Window Master Switch Ckt Short To Voltage (4)
B1554 Luggage Compartment Door Release Ckt Short To Ground. (2)
B1676 Battery Voltage Out Of Range (2)
U1041 Invalid/Missing Data For Vehicle Speed (5)
U1059 Invalid/Missing Data For Transmission Range (6)
U1117 Invalid/Missing Data For Electrical Energy Management (7)
U1135 Invalid/Missing Data For Ignition Switch (8)
U1196 Invalid/Missing Data For Door Locks (9)
U1199 Invalid/Missing Data For External Access (10)
(1) See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
(2) See DOOR LOCKS & TRUNK RELEASE - POWER article.
(3) See MEMORY MIRRORS - POWER article.
(4) See POWER WINDOWS article.
(5) DTC caused by ABS module. See BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section.
(6) DTC caused by powertrain control module. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
(7) DTC caused by Steering Column/Ignition/Lighting (SCIL) module. See POWER WINDOWS article.
(8) DTC caused by Steering Column/Ignition/Lighting (SCIL) module. See INSTRUMENT PANELS - ANALOG article.
(9) DTC caused by Steering Column/Ignition/Lighting (SCIL) module. See ANTI-THEFT SYSTEMS - PASSIVE article.
(10) DTC caused by Steering Column/Ignition/Lighting (SCIL) module. Using NGS tester, perform SCIL module self-test.
STEERING COLUMN/IGNITION/LIGHTING (SCIL) MODULE DTC DEFINITIONS

DTC Description Test
C1446 Brake Switch Circuit Failure (1)
B1246 Panel Dim Potentiometer Switch Ckt Failure (2)
B1312 Headlight Input Circuit Short To Battery (3)
B1334 Luggage Compartment Door Ajar Ckt Short To Ground (2)
B1342 ECU Defective (4)
B1353 Ignition Key-In Circuit Open (5)
B1360 Ignition RUN/ACC Circuit Open (5)
B1364 Ignition START Circuit Open (5)
B1446 Wiper Park Sensor Circuit Failure (6)
B1485 Brake Pedal Input Short To Battery (3)
B1509 Flash-To-Pass Switch Ckt Short To Battery (3)
B1522 Hood Switch Circuit Short To Ground (5)
B1562 Door Lock Cylinder Circuit Short To Ground (5)
B1566 Door Ajar Circuit Short To Ground (2)
B1600 PATS Ignition Key Transponder Signal Is Not Received. (5)
B1601 PATS Received Incorrect Key Code (7)
B2332 Steering Column Tilt Feedback Potentiometer Ckt Failure (7)
B2351 Steering Column Switch Signal Circuit Failure (7)
U1027 SCP Invalid Or Missing Data For Engine RPM (8)
U1041 SCP Invalid Or Missing Data For Vehicle Speed (1)
U1057 SCP Invalid Or Missing Data For Vehicle Configuration (3)
U1059 SCP Invalid Or Missing Data For Trans. PRNDL (8)
U1123 SCP Invalid Or Missing Data For Odometer (1)
U1147 SCP Invalid Or Missing Data For Vehicle Security (8)
U1180 SCP Invalid Or Missing Data For Memory Features (9)
U1181 SCP Invalid Or Missing Data For Memory Features (9)
U1197 SCP Invalid Or Missing Data For Door Locks (5)
U1198 SCP Invalid Or Missing Data For External Access Doors (5)
U1199 SCP Invalid Or Missing Data For External Access Doors (2)
U1211 SCP Invalid Or Missing Data For Restraints (10)
U1222 SCP Invalid Or Missing Data For Internal Lights (5)
(1) Using scan tool, perform ABS self-test. See BRAKE SYSTEM - ANTI-LOCK article in the BRAKES section.
(2) See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
(3) See appropriate wiring diagram in EXTERIOR LIGHTS article.
(4) Repair all other concerns. After all other concerns are repaired, clear all SCIL module DTC. Repeat SCIL module self-test. If DTC B1342 is retrieved again, replace SCIL module.
(5) See ANTI-THEFT SYSTEMS - PASSIVE article.
(6) See SEATS - POWER article.
(7) See STEERING COLUMNS article in the STEERING section.
(8) DTC caused by powertrain control module. Perform PCM self-test. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
(9) See MEMORY MIRRORS - POWER article.
(10) Caused by Driver Seat Module (DSM) module. Using scan tool, perform DSM self-test.
SYMPTOM CHART

Symptom Diagnostic Test
No Communication With Driver's Door Module A 
No Communication With Steering Column/Ignition/Lighting Module B 
Doors Do Not Lock/Unlock Using Keypad C 
Locks Do Not Operate From Remote Transmitter D 
Autolock Does Not Operate Properly E 
Smart Lock Feature Does Not Operate Properly F 
Panic Alarm Does Not Operate From Remote Transmitter G 
Illuminated Entry Does Not Operate Using Keypad H 
Illuminated Entry Does Not Operate Using Remote Transmitter J 
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