( TL19E00J54200000000BBAT00 )

How to Troubleshoot the Body Electrical

HDS Inputs and Commands
Input:

System Menu | Data List | Data List Indication
--- | --- | ---
Climate control | A/C Pressure Switch/Thermal Protector | OFF/ON
Rear Defroster Input Switch | OFF/ON
Rear Defroster Output Switch | OFF/ON
Headlight leveling | Front Height Sensor Value |
Rear Height Sensor Value |
Adjust Sensor Value |
Height Sensor Minimum Value |
Height Sensor Maximum Value |
Passing Input Signal | OFF/ON
Headlight ON Input Signal | OFF/ON
Vehicle Speed Input Signal | OFF/ON
Auto Leveling Warning Command | OFF/ON
Height Sensor Input Signal | OFF/ON
Adjust Output Signal | OFF/ON
Auto Light Leveling Calibration Completion Command |

Output:

System Menu | HDS Description | Note
--- | --- | ---
Climate control | Rear defroster RLY | Outputs for 60 seconds
Rear Defogger | Operates a relay of Rear defroster for 60 seconds
Headlight leveling | The reflector is moved one time up and down | The reflector is moved one time up and down
Warning lamp | Warning lamp
Door locks | LOCK all doors | Outputs LOCK signal 1 time (0.6 sec) to all door
UNLOCK all doors | Outputs UNLOCK signal 1 time (0.6 sec) to all door
UNLOCK driver's side door | Outputs UNLOCK signal 1 time (0.6 sec) to driver side door
Keyless | Trunk Lid/Tailgate Release Command | Unlock trunk
Lighting | Interior Light Command | Illuminates for 30 seconds
Hazard flasher (Turn left and right) | Blinks turn signal (left and right) for 15 seconds
LEFT Turn Signal Command | Blinks for 5 seconds
RIGHT Turn Signal Command | Blinks for 5 seconds
Headlight Command | Operates headlight (low) for 15 seconds
Headlight HIGH Beam Command | Operates headlight (high) for 15 seconds
Fog Light | Operates a relay of front fog light for 15 seconds
Courtesy light (DR) | Illuminates for 30 seconds
Small light | Operates small lights for 15 seconds
Courtesy LT RD | Outputs for 30 seconds
Rear Fog Light | Illuminates for 30 seconds
Headlight Backup | Outputs for 15 milliseconds
Headlight Cleaner | Outputs operation 1 time (for 750 milliseconds)
Courtesy light (AS) | Illuminates for 30 seconds
Courtesy LT RA | Outputs for 30 seconds
Headlight Command | Operates for 15 seconds
Headlight HIGH Beam Command | Operates for 15 seconds
Parking Light Command | Operates for 15 seconds
Fog Light | Operates for 15 seconds
Rear Fog Lamp | Illuminates for 30 seconds
Cargo Area Light | Illuminates for 30 seconds
Power windows | Power window RLY Rr | Outputs for 30 seconds
Power window RLY Rr | Outputs for 30 seconds
Driver's Window Up | Drives for 3 seconds
Driver's Window Down | Drives for 3 seconds
Front Passenger's Window Up | Drives for 3 seconds
Front Passenger's Window Down | Drives for 3 seconds
Left Rear Window Up | Drives for 3 seconds
Left Rear Window Down | Drives for 3 seconds
Right Rear Window Up | Drives for 3 seconds
Right Rear Window Down | Drives for 3 seconds
Security | Horn Command | Operates horn for 1 second
Horn Command | Operates horn for 1 second
Wiper | Windshield Wiper Motor LOW Command | Operates windshield wiper for 5 seconds (low speed)
Windshield Wiper Motor HIGH Command | Operates windshield wiper for 5 seconds (high speed)
Windshield Washer Command | Operates windshield washer for 5 seconds
Windshield Wiper Motor LOW Command | Operates windshield wiper for 5 seconds (low speed)
Windshield Wiper Motor HIGH Command | Operates windshield wiper for 5 seconds (high speed)
Windshield Washer Command | Operates windshield washer for 5 seconds
Auto Wiper Test | Outputs intermittent wiper signal (1 time)
Driving position memory system | Power Seat: Slide Motor-Full FORWARD |
Power Seat: Slide Motor-Full BACKWARD |
Power Seat: Front UP-DOWN Motor-Full UP |
Power Seat: Front UP-DOWN Motor-Full DOWN |
Power Seat: Rear UP-DOWN Motor-Full UP |
Power Seat: Rear UP-DOWN Motor-Full DOWN |
Power Seat: Recline Motor-Full FORWARD |
Power Seat: Recline Motor-Full BACKWARD |
Power Seat: Memory Buzzer-5 seconds |

When an ECU is unable to communicate with the other ECUs on the CAN circuit, the other control units will set loss of communication DTCs. Use this chart to find the control unit that is not communicating.

1. Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs retrieved.

1. Do the input test for the transmitting control unit.

BUS OFF and Internal Error Codes

DTC type | Related Unit
--- | ---
Drive's MICU | Passenger's MICU | Gauge control module | Door multiplex control unit | Immobilizer-keyless control unit | Heater control unit/ Climate control unit | Headlight leveling control unit | Automatic lighting/Rain sensor | Power seat control unit | Hands Free Telephone control unit | Parking and back-up sensor control unit
BUS OFF | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280 | U1280
ECU (EEPROM) Error | B10A2 | B11A2 | B1152 |  |  |  |  |  |  |  |
Driver's MICU | TX | U1282 | U1282 | U1282 | U1282 |  | U1282 | U1282 |  | U1282 | U1282
Passenger's MICU | U1283 | TX | U1283 | U1283 |  |  |  |  |  |  |
Gauge control module | U0155 | U0155 | TX | U0155 | U0155 | U0155 | U0155 |  | U0155 | U0155 |
Door multiplex control unit | U0199 |  |  | TX | U0199 |  |  |  |  |  |
Heater control unit/ Climate control unit |  |  |  | U0164 |  | TX |  |  | TX |  |
ECM/PCM |  |  | U0100 |  |  |  |  |  |  |  |
SRS unit |  |  | U0151 |  |  |  |  |  |  |  |
ACC control unit |  |  | U0104 |  |  |  |  |  |  |  |
VSA modulator-control unit |  |  | U0122 |  |  |  |  |  |  |  |
EPS control unit |  |  | U0131 |  |  |  |  |  |  |  |

TX: | Transmitting unit does not set a loss of communication DTC.

NOTE: In order for the driver's MICU to verify the communication with the rain sensor (with automatic wiper), after the battery terminal(s) have been disconnected, connect the rain sensor 6P connector before reconnecting the battery terminal(s) and turn the ignition switch ON (II). Since only the rain sensor is determined equipped or unequipped by the presence of communication, when the connector is disconnected, even the equipped vehicle is determined as unequipped.