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System Tests: Notes

NOTE: After any repairs are complete, ensure all component are properly installed and all harness connectors are connected properly and repeat data link diagnostic test.
DIAGNOSTIC TROUBLE CODE INDEX (DSM)

DTC Description Test
B1342 DSM Defective (1)
B1663 Driver Seat Front Up/Down Circuit Failure (2)
B1664 Driver Seat Rear Up/Down Circuit Failure (2)
B1665 Driver Seat Forward/Backward Circuit Failure (2)
B1666 Driver Seat Recline Circuit Failure (2)
B1667 Driver Mirror Up/Down Circuit Failure C 
B1668 Driver Mirror Right/Left Circuit Failure C 
B1669 Passenger Mirror Up/Down Circuit Failure C 
B1670 Passenger Mirror Right/Left Circuit Failure C 
B1676 Battery Voltage Out Of Range (2)
B1950 Rear Up/Down Feedback - Circuit Failure (2)
B1953 Rear Up/Down Feedback - Short to Ground (2)
B1954 Front Up/Down Feedback - Circuit Failure (2)
B1957 Front Up/Down Feedback - Short to Ground (2)
B1958 Recline Feedback - Circuit Failure (2)
B1961 Recline Feedback - Short To Ground (2)
B1962 Horizontal Feedback - Circuit Failure (2)
B1965 Horizontal Feedback - Short To Ground (2)
B2312 Passenger Mirror Horizontal Feedback Potentiometer - Circuit Failure D 
B2315 Passenger Mirror Horizontal Feedback Potentiometer - Short To Ground D 
B2316 Passenger Mirror Vertical Feedback Potentiometer - Circuit Failure D 
B2319 Passenger Mirror Vertical Feedback Potentiometer - Short To Ground D 
B2320 Driver Mirror Horizontal Feedback Potentiometer - Circuit Failure D 
B2323 Driver Mirror Horizontal Feedback Potentiometer - Shirt To Ground D 
B2324 Driver Mirror Vertical Feedback Potentiometer - Circuit Failure D 
B2327 Driver Mirror Vertical Feedback Potentiometer - Short To Ground (2)
U1059 Invalid/Missing Data For Transmission Range (3)
U1135 Invalid/Missing Data For Ignition Switch (4)
U1180 Invalid/Missing Data For Memory Feature (5)
U1181 Invalid/Missing Data For Memory Feature (6)
U1194 Invalid/Missing Data For Mirrors (5)
U1200 Invalid/Missing Data For Seat Motion/Control (7)
U1262 Bus Communication Fault (8)
(1) Replace driver seat module.
(2) See POWER SEATS article.
(3) DTC caused by powertrain control module. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
(4) DTC caused by lighting control module. See MODULE COMMUNICATIONS NETWORK article.
(5) DTC caused by driver door module. Perform driver seat module self-test.
(6) DTC caused by virtual image electronic instrument cluster. See ELECTRONIC INSTRUMENT PANEL article.
(7) DTC caused by driver door module. See POWER SEATS article.
(8) Service all other DTCs first. After all other DTC concerns have been repaired, see MODULE COMMUNICATIONS NETWORK article.
DIAGNOSTIC TROUBLE CODE INDEX (DDM)

DTC Description Test
B1322 Door Ajar Circuit Failure (1)
B1342 DDM Defective (2)
B1396 Power Door Lock Short To Voltage (3)
B1397 Power Door Unlock Short To Voltage (3)
B1402 Driver Window Down Circuit Failure (4)
B1529 Memory Set Switch Short To Voltage D 
B1533 Memory "1" Switch Short To Voltage D 
B1537 Memory "2" Switch Short To Voltage D 
B1545 Power Seat Switch Short To Voltage (5)
B1549 Power Window Switch Short To Voltage (4)
B1553 Trunk Release Switch Short To Ground (1)
B1566 Door Ajar Circuit Short To Ground (1)
B2338 Mirror Switch Short To Voltage C 
B2368 Memory LED Output Short To Voltage D 
B2373 LED No. 1 Circuit Short To Voltage G 
B2425 Remote Keyless Entry Out Of Sync. (3)
C1920 LED No. 1 Circuit Failure D 
U1041 Invalid/Missing Data For Vehicle Speed (6)
U1059 Invalid/Missing Data For Transmission Range (7)
U1135 Invalid/Missing Data For Ignition Switch (8)
U1262 Bus Communication Fault (9)
(1) See POWER DOOR LOCKS & TRUNK RELEASE article.
(2) Replace driver door module.
(3) See REMOTE KEYLESS ENTRY SYSTEM article.
(4) See POWER WINDOWS article.
(5) See POWER SEATS article.
(6) DTC caused by ABS system. See ANTI-LOCK BRAKE SYSTEM article in the BRAKES section.
(7) DTC caused by powertrain control module. See TESTS W/CODES article in the ENGINE PERFORMANCE section.
(8) DTC caused by lighting control module. See MODULE COMMUNICATIONS NETWORK article.
(9) Service all other DTCs first. After all other DTC concerns have been repaired, see MODULE COMMUNICATIONS NETWORK article.
SYMPTOM CHART

Symptom Perform Test
No Communication With Driver Door Module (DDM) A
No Communication With Driver Seat Module (DSM) B
Single Mirror Inoperative C
Mirror Potentiometer Circuit Failure D
Reverse Tilting Function Inoperative E
Auto-Dimming Function Inoperative F
Memory Mirrors Inoperative G
Heated Mirrors Inoperative H
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