LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> ADAS Control Unit (Diagnostics) >> Ecu Diagnosis Information >> ADAS Control Unit >> Without Direct Adaptive Steering System >> DTC Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Index

x: Applicable

DTC

CONSULT display

Fail-safe

Reference

Vehicle-to-vehicle distance control mode

Conventional (fixed speed) cruise control mode

FEB

PFCW

BSW/BSI

LDW

LDP

DCA

RAB

ProPILOT

RCTA

C10C8

97

Electric power steering circuit

x

x

--

--

--

--

--

--

--

x

--

DTC Description

C1608

97

Electric parking brake circuit

--

--

--

--

--

--

--

--

--

x

--

DTC Description

C1A00

44

CONTROL UNIT

x

x

x

x

x

x

x

x

x

x

x

DTC Description

45

x

x

x

x

x

x

x

x

x

x

x

DTC Description

46

x

x

x

x

x

x

x

x

--

x

x

DTC Description

48

x

x

x

x

x

x

x

x

x

x

x

DTC Description

49

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A01

A2

POWER SUPPLY CIR

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A02

A3

POWER SUPPLY CIR 2

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A03

29

VHCL SPEED SE CIRC

x

x

x

x

x

x

x

x

x

x

x

DTC Description

64

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A04

97

ABS/TCS/VDC CIRC

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A05

64

BRAKE SW/STOP L SW

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A06

23

OPERATION SW CIRC

x

x

x

x

x

x

x

x

x

--

x

DTC Description

97

x

x

x

x

x

x

x

x

x

--

x

DTC Description

C1A07

97

CVT CIRCUIT

x

x

x

--

--

--

--

x

x

x

--

DTC Description

C1A0A

55

CONFIG UNFINISHED

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A13

23

STOP LAMP RLY FIX

x

x

x

x

--

--

--

x

x

x

--

DTC Description

24

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A14

62

ECM CIRCUIT

x

x

x

x

--

--

--

x

x

x

--

DTC Description

64

x

x

x

x

--

--

--

x

x

x

--

DTC Description

97

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A15

64

GEAR POSITION

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A24

97

NP RANGE

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1A26

97

ABS/TCS/VDC CIRC

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A27

97

ECD PWR SUPLY CIR

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A2F

54

Hands off threshold incomplete

x

x

x

x

x

x

x

--

--

x

x

DTC Description

C1A33

97

CAN TRANSMISSION ERR

x

x

x

x

--

--

--

x

x

x

--

DTC Description

C1A34

64

COMMAND ERROR

x

x

x

x

--

--

--

x

--

x

--

DTC Description

C1A39

97

STRG SEN CIR

x

x

x

x

x

--

--

x

x

x

x

DTC Description

C1A40

23

SYSTEM SW CIRC

--

--

x

x

--

--

--

x

x

--

--

DTC Description

24

--

--

x

x

--

--

--

x

x

--

--

DTC Description

C1A48

82

Electric power steering CAN circuit1

x

x

--

--

--

--

--

--

--

x

--

DTC Description

C1B00

97

CAMERA UNIT MALF

--

--

x

--

--

x

x

--

--

--

--

DTC Description

C1B01

55

CAM AIMING INCMP

--

--

x

--

--

x

x

--

--

--

--

DTC Description

C1B03

4B

CAM ABNRML TMP DETCT

--

--

x

--

--

x

x

--

--

--

--

DTC Description

C1B53

97

SIDE RDR R MALF

--

--

--

--

x

x

x

--

--

--

x

DTC Description

C1B54

97

SIDE RDR L MALF

--

--

--

--

x

x

x

--

--

--

x

DTC Description

C1B56

97

SONAR CIRCUIT

--

--

--

--

--

--

--

--

x

--

--

DTC Description

C1B57

97

AVM CIRCUIT

--

--

--

--

--

--

--

--

x

--

--

DTC Description

C1B58

97

DR ASSIST BUZZER CIRCUIT

x

x

x

x

x

x

x

x

--

x

x

DTC Description

C1B59

97

CCM CIRCUIT

x

x

x

x

x

x

x

x

--

x

x

DTC Description

C1B5A

29

G SENSOR MALF

--

--

--

--

--

--

--

--

--

x

--

DTC Description

C1B5D

97

FEB OPE COUNT LIMIT

--

--

x

x

--

--

--

--

--

--

--

DTC Description

C1B5E

83

ECM CAN CIR 4

x

x

x

x

x

x

x

x

x

x

x

DTC Description

C1B82

97

DIST SEN OFF-CENTER

x

x

x

x

--

--

--

x

--

x

--

DTC Description

C1B84

97

DIST SEN MALFUNCTION

x

x

x

x

--

--

--

x

--

x

--

DTC Description

C1B85

4B

DIST SEN ABNORMAL TEMP

x

x

x

x

--

--

--

x

--

x

--

DTC Description

C1B86

A2

DIST SEN PWR SUP CIR

x

x

x

x

--

--

--

x

--

x

--

DTC Description

U0121

83

VDC CAN CIR2

x

x

x

x

x

x

x

x

x

x

x

DTC Description

U0126

82

STRG SEN CAN CIR1

x

x

x

x

x

--

--

x

--

x

x

DTC Description

U0155

82

MET CAN CIR1

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U0235

82

ICC SENSOR CAN CIRC 1

x

x

x

x

--

--

--

x

--

x

--

DTC Description

U0401

82

ECM CAN CIR1

x

x

x

x

x

--

--

x

--

x

x

DTC Description

U0402

82

TCM CAN CIR1

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U0415

82

VDC CAN CIR1

x

x

x

x

x

x

x

x

x

x

x

DTC Description

U0420

82

Electric power steering CAN circuit

--

--

--

--

--

--

--

--

--

--

--

DTC Description

83

--

--

--

--

--

--

--

--

--

--

--

DTC Description

U0424

82

HVAC CAN CIR 1

--

--

--

--

--

--

--

--

--

--

--

DTC Description

U0428

83

STRG SEN CAN CIR2

x

x

x

x

x

--

--

x

--

x

x

DTC Description

U0433

83

ICC SENSOR CAN CIRC 2

x

x

x

x

--

--

--

x

x

x

--

DTC Description

U1000

01

CAN COMM CIRCUIT

x

x

x

x

x

x

x

x

x

x

x

DTC Description

U1010

49

CONTROL UNIT (CAN)

x

x

x

x

x

x

x

x

x

x

x

DTC Description

U1090

82

Electric parking brake CAN circuit

x

x

--

--

--

--

--

--

--

x

--

DTC Description

83

x

x

--

--

--

--

--

--

--

x

--

DTC Description

U1500

00

CAM CAN CIR2

--

--

x

--

--

x

x

--

x

--

--

DTC Description

83

--

--

x

--

--

x

x

--

x

--

--

DTC Description

U1501

00

CAM CAN CIR 1

--

--

x

--

--

x

x

--

x

--

--

DTC Description

82

--

--

x

--

--

x

x

--

x

--

--

DTC Description

U1502

08

ICC SEN CAN COMM CIR

x

x

x

x

--

--

--

x

--

x

--

DTC Description

U1503

83

SIDE RDR L CAN CIRC 2

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1504

82

SIDE RDR L CAN CIRC 1

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1505

83

SIDE RDR R CAN CIRC 2

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1506

82

SIDE RDR R CAN CIRC 1

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1507

87

LOST COMM (SIDE RDR R)

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1508

87

LOST COMM (SIDE RDR L)

--

--

--

--

x

--

--

--

--

--

x

DTC Description

U1521

83

SONAR CAN COMMUNICATION 2

--

--

--

--

--

--

--

--

x

--

--

DTC Description

U1522

82

SONAR CAN COMMUNICATION 1

--

--

--

--

--

--

--

--

x

--

--

DTC Description

U1524

82

AVM CAN COMMUNICATION 1

--

--

--

--

--

--

--

--

--

--

--

DTC Description

U1525

81

AVM CAN COMMUNICATION 3

--

--

--

--

--

--

--

--

--

--

--

DTC Description

U1527

82

CCM CAN CIRCUIT 1

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U1536

83

AVM CAN COMMUNICATION 2

--

--

--

--

--

--

--

--

--

x

--

DTC Description

U153F

83

CCM CAN CIR 2

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U2141

83

CAN comm err (TCM)

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U214E

83

CAN comm err (combination meter)

x

x

x

x

x

x

x

x

--

x

x

DTC Description

U214F

83

CAN comm err (BCM)

x

x

x

--

x

x

x

x

--

x

x

DTC Description

NOTE: With the detection of "U1000-01" some systems do not perform the fail-safe operation.

A system controlling based on a signal received from the control unit performs fail-safe operation when the communication with the ADAS control unit becomes inoperable.