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System Testing

NOTE: A New Generation Star (NGS) tester is required to test the power mirror system. If NGS tester does not communicate with vehicle, refer to NGS tester manual. Before beginning system testing, perform TROUBLE SHOOTING.

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 and CKT 915=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's Seat Module (DSM), go to TEST E: NO COMMUNICATION WITH DRIVER'S SEAT MODULE (DSM) under DTC TESTS. If NGS tester responds with, NO RESPONSE/NOT EQUIPPED for Driver's Door Module (DDM), go to TEST D: NO COMMUNICATION WITH DRIVER'S DOOR MODULE (DDM) under DTC 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 table and perform appropriate test.

DTC DEFINITIONS (DRIVER'S SEAT MODULE)

DTC Description Perform Test
B1342 ECU Defective (1)
B1462 Driver's Safety Belt Switch Circuit Failure (2)
B1597 Driver's Seat Back Auto-Glide Forward Circuit Short (1)
B1676 Battery Voltage Out Of Range (1)
B1703 Driver's Seat Recline Forward Circuit Short To Voltage (1)
B1707 Driver's Seat Recline Rearward Circuit Short To Voltage (1)
B1711 Driver's Seat Front Up Circuit Short To Voltage (1)
B1715 Driver's Seat Front Down Circuit Short To Voltage (1)
B1719 Driver's Seat Forward Circuit Short To Voltage (1)
B1723 Driver's Seat Rearward Circuit Short To Voltage (1)
B1727 Driver's Seat Rear Up Circuit Short To Voltage (1)
B1731 Driver's Seat Rear Down Circuit Short To Voltage (1)
B1950 Driver's Seat Rear Up/Down Feedback Circuit Failure (1)
B1954 Driver's Seat Front Up/Down Feedback Circuit Failure (1)
B1958 Driver's Seat Recline Forward/Backward Feedback Circuit Failure (1)
B1962 Driver's Seat Horizontal Forward/Backward Feedback Circuit Failure (1)
B1986 Driver's Seat Auto-Glide Rearward Switch Circuit Failure (1)
B2312 Passenger Mirror Horizontal Feedback Potentiometer Circuit Failure DTC B2312 
B2316 Passenger Mirror Vertical Feedback Potentiometer Circuit Failure DTC B2316 
B2320 Passenger Mirror Horizontal Feedback Potentiometer Circuit Failure DTC B2320 
B2324 Passenger Mirror Vertical Feedback Potentiometer Circuit Failure DTC B2324 
U1059 Invalid/Missing Data For Transmission Range (3)
U1117 Invalid/Missing Data For Electrical Energy Management (4)
U1135 Invalid/Missing Data For Ignition Switch article. (5)
U1180 Invalid/Missing Data For Memory Feature C 
U1181 Invalid/Missing Data For Memory Feature DTC U1181 
U1194 Invalid/Missing Data For Mirrors C 
U1199 Invalid/Missing Data For External Access (6)
(1) See POWER SEATS article.
(2) See ANALOG INSTRUMENT PANELS article.
(3) DTC caused by powertrain control module. See TESTS W/CODES article in the ENGINE PERFORMANCE article.
(4) DTC caused by lighting control module. See POWER WINDOWS article.
(5) DTC caused by lighting control module. See ANALOG INSTRUMENT PANEL article.
(6) DTC caused by lighting control module. Perform TEST M: NO MODULE/NETWORK COMMUNICATION - BUS LINK under TESTS in MODULE COMMUNICATIONS NETWORK article.
DTC DEFINITIONS (DRIVER'S DOOR MODULE)

DTC Description Perform Test
B1322 Left Front Door Ajar Circuit Short To Ground (1)
B1342 ECU Defective DTC B1342 
B1396 Power Door Lock Circuit Short To Voltage (2)
B1525 Keyless Entry Circuit Short To Voltage (3)
B1529 Memory Set Switch Short To Voltage DTC B1529 
B1539 Driver's Mirror Switch Assembly Circuit Failure DTC B1539 
B1549 Power Window Master Switch Circuit Short To Voltage (4)
B1554 Luggage Compartment Door Release Circuit Short To Ground (2)
B1676 Battery Voltage Out Of Range section (3)
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 ILLUMINATION/INTERIOR LIGHTS wiring diagram in SYSTEM WIRING DIAGRAMS article in WIRING DIAGRAMS article.
(2) See POWER DOOR LOCKS article.
(3) See REMOTE KEYLESS ENTRY SYSTEMS article
(4) See POWER WINDOWS article.
(5) DTC caused by ABS module. See ANTI-LOCK BRAKES article in BRAKES section.
(6) DTC caused by powertrain control module. See TESTS W/CODES article in 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 ANALOG INSTRUMENT PANEL article.
(9) DTC caused by Steering Column/Ignition/Lighting (SCIL) module. See PASSIVE ANTI-THEFT SYSTEMS article.
(10) DTC caused by lighting control module. Perform TEST M: NO MODULE/NETWORK COMMUNICATION - BUS LINK under TESTS in MODULE COMMUNICATIONS NETWORK article.
SYMPTOM CHART

Symptom Perform Test
Mirror/Seat Potentiometer
Circuit Failure A 
Mirror Potentiometer Circuit Failure B 
SCP Invalid Or Missing Data From DDM C 
No Communication With Driver's Door Module (DDM) D 
No Communication With Driver's Seat Module (DSM) E 
Both Mirrors Inoperative F 
Passenger Mirror Inoperative G 
Driver's Mirror Inoperative H 
Driver's Mirror Vertical Control Inoperative J 
Driver's Mirror Horizontal Control Inoperative K 
Passenger Mirror Vertical Control Inoperative L 
Passenger Mirror Horizontal Control Inoperative M 
Auto-Dimming Function Inoperative N 
Heated Mirrors Inoperative P 
Memory Mirrors Inoperative Q 
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