Lighting (Diagnostics - Introduction): Other

PRECAUTION

Note. When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Parking Assist Monitor System Refer to INITIALIZATION Side Monitor System (w/ Parking Assist Monitor System) Back Door Closer System Power Back Door System

PRECAUTION FOR HID HEADLIGHT SYSTEM When any defects such as deformation, cracks, dents, chipping, etc. are identified on the High Intensity Discharge (HID) headlight (especially, on the light control ECU), replace it with a new one. Even if the operation of the lights seems to be normal, the fail-safe function may be defective. Since an HID headlight bulb has pressurized gas inside and can easily be broken if scratched or dropped, special care should be taken. When handling the bulb, hold the plastic or metal part and do not touch the glass part with bare hands. When the HID headlights illuminate, a high voltage (approximately 20000 V) is applied momentarily to the bulb sockets. Never connect a tester to the high voltage socket of an HID headlight for measurement, as this may result in a serious accident because of high voltage. When servicing an HID headlight, do not allow the HID headlight to come into contact with water. Turn off the light control switch and disconnect the cable from the negative (-) battery terminal and the connector of the light control ECU in advance to avoid electric shocks. When performing an operation related to an HID headlight, only operate it after assembly is complete. Never turn on the HID headlights without a bulb installed. Do not turn on the HID headlights using a power source other than the vehicle battery. The light color emitted by the HID headlight bulb varies across the ages.
PRECAUTION FOR HEADLIGHT BULB REPLACEMENT If even a thin film of oil is left on the surface of an HID headlight bulb or a halogen bulb, its service life will be shortened because the light will burn at a higher temperature. When replacing a bulb, be sure to hold the flanged part of the light so that your hand does not contact the glass part of the bulb. Due to the high internal pressure of HID headlight bulbs, they may explode and shatter if dropped, hit or damaged. Always prepare a new bulb for immediate replacement. While replacing the bulb, the lens may attract dust and moisture if removed from the vehicle for a long time. Always replace a bulb with another bulb of the same wattage. If only replacing the bulb on one side, differences in brightness and lighting color between the right and left sides may occur. Securely install the socket after bulb replacement. The lens may become cloudy or the light cavity may be filled with water through gaps around the socket if it is not installed securely. Do not break the HID headlight bulb when disposing of it as shards of glass may fly off and cause injuries. It is not possible to determine if an HID headlight bulb is defective by checking it visually. Check the bulb by replacing it with a known good one.
PRECAUTION FOR AUTOMATIC HIGH BEAM SYSTEM General Description The automatic high beam system is a system that helps ensure visibility by automatically changing between the high beams and low beams. In addition, due to control limitations of the automatic high beam system, it may be necessary to manually change between high beams and low beams. For safety reasons, make sure to switch the high beams and low beams manually according to the driving conditions. Conditions Unsuitable for Using Automatic High Beam System Under the following conditions, the automatic high beam system might not detect other vehicles or lights correctly, or the high beams might cause glare or flash pedestrians or the occupants of other vehicles. Manual operation should be considered. Factor Condition Weather/Climate When driving in bad weather (rain, snow, fog, sandstorms, etc.). Front windshield When the front windshield is not clear (ice, snow or frost on the glass). When the front windshield is dirty (sand, mud, water stain or bugs on the glass). When the front windshield is cracked. When the front windshield is fogged-up. When the front windshield has a film attached. When an object on the instrument panel reflects off of the front glass. When any other abnormal conditions exist with the front glass. Inner rear view mirror assembly When a parking tag, magnifying lens or other accessory is mounted on the inner rear view mirror assembly. When the inner rear view mirror assembly or its built-in camera is deformed. When the camera sensor in the inner rear view mirror assembly is dirty. When any other abnormal conditions exist with the inner rear view mirror assembly or its built-in camera sensor. Nearby vehicles or lights When lights similar to headlights or taillights are in the vicinity of the vehicle. When a nearby vehicle has no lights or its lights are off. When a vehicle in front has misaligned lights, or its lights are changing color. When a vehicle in front has extremely dirty headlights or taillights. Road conditions When driving in areas where the conditions often change between bright and dark. When driving on hilly roads. When driving on winding roads or around sharp curves. When driving on bumpy roads (cobblestone paving, gravel road, rough unpaved road, etc.). When highly reflective objects are in front of the vehicle (mirrors, road signs, etc.). Own vehicle When the headlights are damaged, deformed or dirty. When the vehicle posture is abnormal (posture has changed due to the vehicle being fully loaded, a trailer being towed, road conditions etc.). When the vehicle has other malfunctions or it has been modified. Automatic high beam system Malfunction When the indicator on the combination meter assembly is off or is blinking. Others When the automatic high beam system does not seem to be changing between the high beams and low beams properly. When the automatic high beam system is frequently changing between the high beams and low beams. When the glare from the high beams would disturb pedestrians or the drivers of other vehicles. Windshield Replacement Precautions The timing of the change between high beams and low beams differs depending on the light transmission rate of the glass. For this reason, when replacing the windshield, replace it with an original equipment part. Inner Rear View Mirror Assembly Handling Precautions Failure to observe the following precautions may result in a malfunction: Do not touch the lens of the camera (built into the inner rear view mirror assembly) with bare hands. Do not allow anything to adhere to the camera lens (built into the inner rear view mirror assembly). Do not apply strong impacts to the inner rear view mirror assembly. Do not allow any liquids to contact the inner rear view mirror assembly.

PRECAUTION FOR HID HEADLIGHT SYSTEM When any defects such as deformation, cracks, dents, chipping, etc. are identified on the High Intensity Discharge (HID) headlight (especially, on the light control ECU), replace it with a new one. Even if the operation of the lights seems to be normal, the fail-safe function may be defective. Since an HID headlight bulb has pressurized gas inside and can easily be broken if scratched or dropped, special care should be taken. When handling the bulb, hold the plastic or metal part and do not touch the glass part with bare hands. When the HID headlights illuminate, a high voltage (approximately 20000 V) is applied momentarily to the bulb sockets. Never connect a tester to the high voltage socket of an HID headlight for measurement, as this may result in a serious accident because of high voltage. When servicing an HID headlight, do not allow the HID headlight to come into contact with water. Turn off the light control switch and disconnect the cable from the negative (-) battery terminal and the connector of the light control ECU in advance to avoid electric shocks. When performing an operation related to an HID headlight, only operate it after assembly is complete. Never turn on the HID headlights without a bulb installed. Do not turn on the HID headlights using a power source other than the vehicle battery. The light color emitted by the HID headlight bulb varies across the ages.
PRECAUTION FOR HEADLIGHT BULB REPLACEMENT If even a thin film of oil is left on the surface of an HID headlight bulb or a halogen bulb, its service life will be shortened because the light will burn at a higher temperature. When replacing a bulb, be sure to hold the flanged part of the light so that your hand does not contact the glass part of the bulb. Due to the high internal pressure of HID headlight bulbs, they may explode and shatter if dropped, hit or damaged. Always prepare a new bulb for immediate replacement. While replacing the bulb, the lens may attract dust and moisture if removed from the vehicle for a long time. Always replace a bulb with another bulb of the same wattage. If only replacing the bulb on one side, differences in brightness and lighting color between the right and left sides may occur. Securely install the socket after bulb replacement. The lens may become cloudy or the light cavity may be filled with water through gaps around the socket if it is not installed securely. Do not break the HID headlight bulb when disposing of it as shards of glass may fly off and cause injuries. It is not possible to determine if an HID headlight bulb is defective by checking it visually. Check the bulb by replacing it with a known good one.
PRECAUTION FOR AUTOMATIC HIGH BEAM SYSTEM General Description The automatic high beam system is a system that helps ensure visibility by automatically changing between the high beams and low beams. In addition, due to control limitations of the automatic high beam system, it may be necessary to manually change between high beams and low beams. For safety reasons, make sure to switch the high beams and low beams manually according to the driving conditions. Conditions Unsuitable for Using Automatic High Beam System Under the following conditions, the automatic high beam system might not detect other vehicles or lights correctly, or the high beams might cause glare or flash pedestrians or the occupants of other vehicles. Manual operation should be considered. Factor Condition Weather/Climate When driving in bad weather (rain, snow, fog, sandstorms, etc.). Front windshield When the front windshield is not clear (ice, snow or frost on the glass). When the front windshield is dirty (sand, mud, water stain or bugs on the glass). When the front windshield is cracked. When the front windshield is fogged-up. When the front windshield has a film attached. When an object on the instrument panel reflects off of the front glass. When any other abnormal conditions exist with the front glass. Inner rear view mirror assembly When a parking tag, magnifying lens or other accessory is mounted on the inner rear view mirror assembly. When the inner rear view mirror assembly or its built-in camera is deformed. When the camera sensor in the inner rear view mirror assembly is dirty. When any other abnormal conditions exist with the inner rear view mirror assembly or its built-in camera sensor. Nearby vehicles or lights When lights similar to headlights or taillights are in the vicinity of the vehicle. When a nearby vehicle has no lights or its lights are off. When a vehicle in front has misaligned lights, or its lights are changing color. When a vehicle in front has extremely dirty headlights or taillights. Road conditions When driving in areas where the conditions often change between bright and dark. When driving on hilly roads. When driving on winding roads or around sharp curves. When driving on bumpy roads (cobblestone paving, gravel road, rough unpaved road, etc.). When highly reflective objects are in front of the vehicle (mirrors, road signs, etc.). Own vehicle When the headlights are damaged, deformed or dirty. When the vehicle posture is abnormal (posture has changed due to the vehicle being fully loaded, a trailer being towed, road conditions etc.). When the vehicle has other malfunctions or it has been modified. Automatic high beam system Malfunction When the indicator on the combination meter assembly is off or is blinking. Others When the automatic high beam system does not seem to be changing between the high beams and low beams properly. When the automatic high beam system is frequently changing between the high beams and low beams. When the glare from the high beams would disturb pedestrians or the drivers of other vehicles. Windshield Replacement Precautions The timing of the change between high beams and low beams differs depending on the light transmission rate of the glass. For this reason, when replacing the windshield, replace it with an original equipment part. Inner Rear View Mirror Assembly Handling Precautions Failure to observe the following precautions may result in a malfunction: Do not touch the lens of the camera (built into the inner rear view mirror assembly) with bare hands. Do not allow anything to adhere to the camera lens (built into the inner rear view mirror assembly). Do not apply strong impacts to the inner rear view mirror assembly. Do not allow any liquids to contact the inner rear view mirror assembly.

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Scheme 159: ILLUSTRATION

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Scheme 162: ILLUSTRATION

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Scheme 163: ILLUSTRATION

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Scheme 164: SYSTEM DIAGRAM

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Scheme 171

AUTOMATIC LIGHT CONTROL SYSTEM
LIGHT AUTO TURN-OFF SYSTEM COMMUNICATION TABLE Transmitter Receiver Line Data Name Certification ECU (Smart Key ECU Assembly) Main Body ECU (Multiplex Network Body ECU) CAN Wireless Door Lock Signal Power Back Door ECU (Power Back Door Unit Assembly) Main Body ECU (Multiplex Network Body ECU) CAN Back Door Courtesy Switch Signal
DAYTIME RUNNING LIGHT SYSTEM COMMUNICATION TABLE Transmitter Receiver Line Data Name ECM Main Body ECU (Multiplex Network Body ECU) CAN Engine RPM Data
AUTOMATIC HIGH BEAM SYSTEM COMMUNICATION TABLE Transmitter Receiver Line Data Name Inner Rear View Mirror Assembly AFS ECU (Headlight Swivel ECU Assembly) LIN High Beam ON Request Steering Angle Sensor AFS ECU (Headlight Swivel ECU Assembly) CAN Data Continuity (Valid/Invalid) Flag +B Disconnection Sensor Error Zero Point Memory Invalid/Valid Inside Sensor Memorized Zero Point Value Inside Sensor Steering Signal Skid Control ECU AFS ECU (Headlight Swivel ECU Assembly) CAN Front Right Wheel Speed Sensor Error Flag Front Right Wheel Speed ECM AFS ECU (Headlight Swivel ECU Assembly) CAN Shift Position R Signal Main Body ECU (Multiplex Network Body ECU) AFS ECU (Headlight Swivel ECU Assembly) CAN Automatic High Beam Enable Main Body ECU (Multiplex Network Body ECU) Combination Meter Assembly CAN Automatic High Beam Indicator AFS ECU (Headlight Swivel ECU Assembly) Main Body ECU (Multiplex Network Body ECU) CAN Automatic High Beam Drive Request Failure of Automatic High Beam Sensor Condition of Automatic High Beam Sensor
HID HEADLIGHT SYSTEM
AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM COMMUNICATION TABLE Transmitter Receiver Line Data Name ECM AFS ECU (Headlight Swivel ECU Assembly) CAN Engine Revolving Flag Main Body ECU (Multiplex Network Body ECU) AFS ECU (Headlight Swivel ECU Assembly) CAN Lighting System State Signal DRL Request High Beam Headlight Request Low Beam Headlight Request AFS ECU (Headlight Swivel ECU Assembly) Main Body ECU (Multiplex Network Body ECU) CAN AFS/Leveling Flag AFS ECU (Headlight Swivel ECU Assembly) Combination Meter Assembly CAN AFS OFF Indicator Request Signal Headlight Leveling Warning Message (w/o AFS) Skid Control ECU AFS ECU (Headlight Swivel ECU Assembly) CAN Front Right Wheel Speed Sensor Error Flag Front Right Wheel Speed Front Left Wheel Speed Sensor Error Flag Front Left Wheel Speed
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) COMMUNICATION TABLE Transmitter Receiver Line Data Name ECM AFS ECU (Headlight Swivel ECU Assembly) CAN Engine Revolving Flag Shift Position P Signal Shift Position R Signal Shift Position N Signal Shift Position D Signal Main Body ECU (Multiplex Network Body ECU) AFS ECU (Headlight Swivel ECU Assembly) CAN Lighting System State Signal DRL Request High Beam Headlight Request Low Beam Headlight Request Skid Control ECU AFS ECU (Highlight Swivel ECU Assembly) CAN Front Right Wheel Speed Sensor Error Flag Front Right Wheel Speed Front Left Wheel Speed Sensor Error Flag Front Left Wheel Speed AFS ECU (Headlight Swivel ECU Assembly) Combination Meter Assembly CAN AFS OFF Indicator Request Signal AFS ECU (Headlight Swivel ECU Assembly) Main Body ECU (Multiplex Network Body ECU) CAN AFS/Leveling Flag
DOOR MIRROR FOOT LIGHT SYSTEM COMMUNICATION TABLE Transmitter Receiver Line Data Name Power Back Door ECU (Power Back Door Unit Assembly) Main Body ECU (Multiplex Network Body ECU) CAN Back Door Courtesy Signal Main Body ECU (Multiplex Network Body ECU) Outer Rear View Mirror ECU Assembly LH CAN Door Mirror Foot Light On Demand Signal ECM Main Body ECU (Multiplex Network Body ECU) CAN Shift Position P Signal Certification ECU (Smart Key ECU Assembly) Main Body ECU (Multiplex Network Body ECU) CAN Wireless Door Lock Signal Main Body ECU (Multiplex Network Body ECU) Outer Rear View Mirror ECU Assembly RH CAN Door Mirror Foot Light On Demand Signal

CUSTOMIZE PARAMETERS

CUSTOMIZING FUNCTION WITH TECHSTREAM HINT: The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. When troubleshooting a function, first make sure that the function is set to the default setting. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Customize Setting / Light Control or Illuminated Entry. Select the setting by referring to the table below. LIGHT CONTROL Display Default Content Setting Disp Ex ON Sen Normal Changes the ambient brightness level required to dim the lights such as the indicator lights of the combination meter, A/C indicator light and clock. Light2, Light1, Normal, Dark1 or Dark2 Disp Ex OFF Sen Normal Changes the ambient brightness level required to cancel the dimming of the lights such as the indicator lights of the combination meter, A/C indicator light and clock. Light2, Light1, Normal, Dark1 or Dark2 Light Auto OFF Delay 30 s Keeps the headlights on for a certain period of time after turning the engine switch off and closing all the doors with the low beam headlights on. Off, 30 s, 60 s or 90 s Sensitivity Normal Adjusts the sensitivity of the automatic light control system. Light2, Light1, Normal, Dark1 or Dark2 DRL Function On ON/OFF of the DRL function On or Off Automatic High Beam On ON/OFF of the automatic high beam function. On or Off ILLUMINATED ENTRY Tester Display Default Content Setting Mirr-Foot-Lgt Approached ON Lights up the door mirror foot lights when a key enters any actuation area around the doors. ON or OFF Mirr-Foot-Lgt Unlocked ON Lights up door mirror foot lights when doors are unlocked using a mechanical key or door control transmitter. ON or OFF Mirr-Foot-Lgt w/Master SW ON Lights up door mirror foot lights when driver side door control switch on the multiplex network master switch assembly is pushed to unlock position. Lights up door mirror foot lights when front passenger side door control switch on the power window regulator switch assembly is pushed to unlock position. ON or OFF Mirror Foot Lighting Time 15 s Changes the lighting time of the door mirror foot lights. 7.5 s, 15 s or 30 s Exterior Light Control ON Changes the door mirror foot light control. ON or OFF

INITIALIZATION

Note. Initialize the AFS ECU (headlight swivel ECU assembly) when the AFS ECU (headlight swivel ECU assembly) is replaced. If the vehicle is not equipped with air suspension system, initialize the AFS ECU (headlight swivel ECU assembly) (set the zero point of the height control sensor in the AFS ECU (headlight swivel ECU assembly)) after the vehicle height changes due to replacement of suspension components or after performing such operations as removal and reinstallation or replacement of the rear height control sensor sub-assembly RH. If the vehicle is not equipped with air suspension system, adjust the headlight aim after initializing the AFS ECU (headlight swivel ECU assembly). Refer to ADJUSTMENT . When a malfunction is detected in the automatic headlight beam level control system or AFS, height control sensor signal initialization is impossible. Perform troubleshooting before initialization.

Scheme 172

CHECK VEHICLE CONDITION Check the vehicle condition. Result Result Proceed to w/o Air Suspension System A w/ Air Suspension System B B --> Go to step 7 . A: Go to next step
CHECK VEHICLE CONDITION Check the vehicle condition. Result Result Proceed to The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. A Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. B B --> Go to step 4 . A: Go to next step
SYNCHRONIZE VEHICLE INFORMATION When using the Techstream: Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Enter the following menus: Main Body / AFS / Utility / ECU Information Sync / Next. Check what is displayed on the screen of the Techstream and press "Next". Check that the AFS OFF indicator light continuously blinks 6 times at 2 Hz. Press "Exit" and turn the engine switch off. When not using the Techstream: Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Turn the low beam headlights on and off 8 times using the light control switch within 20 seconds after turning the engine switch on (IG). HINT: If the light control switch operation cannot be finished within 20 seconds, turn the engine switch off. Then, turn the engine switch on (IG) and restart again. NOTE: Turn the low beam headlights on and off at less than 2-second intervals. Check that the AFS OFF indicator light continuously blinks 6 times at 2 Hz. Turn the engine switch off. NEXT: Go to next step
PREPARE VEHICLE FOR INITIALIZATION Unload the trunk and vehicle, ensuring that the spare tire, tools and jack are in their original positions. Check that there are no occupants in the vehicle. Turn off the headlights. Stop the vehicle on a level surface and keep the vehicle height unchanged. NEXT: Go to next step
CHECK AFS OFF INDICATOR LIGHT Turn the engine switch on (IG), and check the indicator light. OK Condition Specified Condition The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. Indicator light continuously blinks 6 times at 2 Hz. Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. Indicator light comes on for approximately 3 seconds, and then goes off (bulb check function). HINT: If the indicator light does not come on when turning the engine switch on (IG), inspect and repair it according to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000) . NG --> GO TO PROBLEM SYMPTOMS TABLE «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000) . OK: Go to next step
INITIALIZATION Connect terminals 4 (CG) and 8 (LVL) of the DLC3 using SST. SST: 09843-18040 Turn the low beam headlights on and off using the light control switch within 20 seconds after connecting the terminals. HINT: The number of times the low beam headlights need to be turned on and off is determined by the present fuel level as shown below. Fuel Level Number of Times to Turn Low Beam Headlights on and off Fuel level is within A range. 1 Fuel level is within B range. 2 Fuel level is within C range. 3 Fuel level is within D range. 4 Fuel level is within E range. 5 NOTE: Turn the low beam headlights on and off at less than 3-second intervals. Be sure to operate the light control switch from outside the vehicle. Check the indicator light. OK Condition Specified Condition The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. Blinks 6 times at 2 Hz --> Continuously blinks N*1 times at 2 Hz. Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. Off --> Continuously blinks N*1 times at 2 Hz. HINT: *1: The number of times that the indicator blinks is determined by the number of times the low beam headlights are turned on and off. If initialization cannot be finished normally, disconnect SST from the DLC3 and turn the engine switch off. Then, restart from procedure 1. NG --> GO TO PROBLEM SYMPTOMS TABLE «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000) . OK --> TURN ENGINE SWITCH OFF (END)
SYNCHRONIZE VEHICLE INFORMATION HINT: If the AFS ECU (headlight swivel ECU assembly) is replaced with a new one, synchronize the vehicle information. When using the Techstream: Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Enter the following menus: Main Body / AFS / Utility / ECU Information Sync / Next. Check what is displayed on the screen of the Techstream and press "Next". Press "Exit" and turn the engine switch off. When not using the Techstream: Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Turn the low beam headlights on and off 8 times using the light control switch within 20 seconds after turning the engine switch on (IG). HINT: If the light control switch operation cannot be finished within 20 seconds, turn the engine switch off. Then, turn the engine switch on (IG) and restart again. NOTE: Turn the low beam headlights on and off at less than 2-second intervals. Turn the engine switch off. NEXT --> END

CHECK VEHICLE CONDITION Check the vehicle condition. Result Result Proceed to w/o Air Suspension System A w/ Air Suspension System B B --> Go to step 7 . A: Go to next step
CHECK VEHICLE CONDITION Check the vehicle condition. Result Result Proceed to The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. A Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. B B --> Go to step 4 . A: Go to next step
SYNCHRONIZE VEHICLE INFORMATION When using the Techstream: Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Enter the following menus: Main Body / AFS / Utility / ECU Information Sync / Next. Check what is displayed on the screen of the Techstream and press "Next". Check that the AFS OFF indicator light continuously blinks 6 times at 2 Hz. Press "Exit" and turn the engine switch off. When not using the Techstream: Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Turn the low beam headlights on and off 8 times using the light control switch within 20 seconds after turning the engine switch on (IG). HINT: If the light control switch operation cannot be finished within 20 seconds, turn the engine switch off. Then, turn the engine switch on (IG) and restart again. NOTE: Turn the low beam headlights on and off at less than 2-second intervals. Check that the AFS OFF indicator light continuously blinks 6 times at 2 Hz. Turn the engine switch off. NEXT: Go to next step
PREPARE VEHICLE FOR INITIALIZATION Unload the trunk and vehicle, ensuring that the spare tire, tools and jack are in their original positions. Check that there are no occupants in the vehicle. Turn off the headlights. Stop the vehicle on a level surface and keep the vehicle height unchanged. NEXT: Go to next step
CHECK AFS OFF INDICATOR LIGHT Turn the engine switch on (IG), and check the indicator light. OK Condition Specified Condition The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. Indicator light continuously blinks 6 times at 2 Hz. Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. Indicator light comes on for approximately 3 seconds, and then goes off (bulb check function). HINT: If the indicator light does not come on when turning the engine switch on (IG), inspect and repair it according to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000) . NG --> GO TO PROBLEM SYMPTOMS TABLE «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000) . OK: Go to next step
INITIALIZATION Connect terminals 4 (CG) and 8 (LVL) of the DLC3 using SST. SST: 09843-18040 Turn the low beam headlights on and off using the light control switch within 20 seconds after connecting the terminals. HINT: The number of times the low beam headlights need to be turned on and off is determined by the present fuel level as shown below. Fuel Level Number of Times to Turn Low Beam Headlights on and off Fuel level is within A range. 1 Fuel level is within B range. 2 Fuel level is within C range. 3 Fuel level is within D range. 4 Fuel level is within E range. 5 NOTE: Turn the low beam headlights on and off at less than 3-second intervals. Be sure to operate the light control switch from outside the vehicle. Check the indicator light. OK Condition Specified Condition The AFS ECU (headlight swivel ECU assembly) has been replaced with a new one. Blinks 6 times at 2 Hz --> Continuously blinks N*1 times at 2 Hz. Removal and reinstallation of the AFS ECU (headlight swivel ECU assembly), replacement of the rear height control sensor sub-assembly RH, removal and reinstallation of the rear height control sensor sub-assembly RH, replacement of the suspension, etc. have been performed. Off --> Continuously blinks N*1 times at 2 Hz. HINT: *1: The number of times that the indicator blinks is determined by the number of times the low beam headlights are turned on and off. If initialization cannot be finished normally, disconnect SST from the DLC3 and turn the engine switch off. Then, restart from procedure 1. NG --> GO TO PROBLEM SYMPTOMS TABLE «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000) . OK --> TURN ENGINE SWITCH OFF (END)
SYNCHRONIZE VEHICLE INFORMATION HINT: If the AFS ECU (headlight swivel ECU assembly) is replaced with a new one, synchronize the vehicle information. When using the Techstream: Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Enter the following menus: Main Body / AFS / Utility / ECU Information Sync / Next. Check what is displayed on the screen of the Techstream and press "Next". Press "Exit" and turn the engine switch off. When not using the Techstream: Turn the engine switch on (IG), and check that the AFS OFF indicator light continuously blinks at 0.5 Hz. Turn the low beam headlights on and off 8 times using the light control switch within 20 seconds after turning the engine switch on (IG). HINT: If the light control switch operation cannot be finished within 20 seconds, turn the engine switch off. Then, turn the engine switch on (IG) and restart again. NOTE: Turn the low beam headlights on and off at less than 2-second intervals. Turn the engine switch off. NEXT --> END

FREEZE FRAME DATA

FREEZE FRAME DATA Whenever a DTC is detected, the AFS ECU (headlight swivel ECU assembly) stores the current vehicle (sensor) state as Freeze Frame Data.
CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / AFS / Trouble Codes. According to the display on the Techstream, select the trouble code data display with Freeze Frame Data. AFS Tester Display Measurement Item/Range Normal Condition AFS OFF Switch AFS OFF switch signal/ON or OFF ON: AFS off OFF: AFS on Traveling Direction Traveling Direction/Not Fwd or Fwd Not Fwd: Shift lever in R or N Fwd: Shift lever in neither R nor N Headlight Low Beam State Low beam headlight state/ON or OFF ON: Low beam headlights on OFF: Low beam headlights off Headlight High Beam State High beam headlight state/ON or OFF ON: High beam headlights on OFF: High beam headlights off Engine Engine condition/Run or Stop Run: Engine running Stop: Engine stopped Steering Sens Signal Steering angle sensor signal value/-384 deg to 382.5 deg Condition can be displayed FR Wheel Speed Front right wheel speed/0 to 327.67 km/h Condition can be displayed FL Wheel Speed Front left wheel speed/0 to 327.67 km/h Condition can be displayed Vehicle Acceleration Vehicle acceleration/-455.65 to 445.6 m/s 2 Condition can be displayed Swivel Motor Slave Status of the swivel motor slave/Normal or Abnormal Condition can be displayed Swivel Motor Over-Run Status of the swivel motor over-run/Normal or Abnormal Condition can be displayed Leveling Motor Slave Status of the leveling motor Slave/Normal or Abnormal Condition can be displayed Leveling Motor Over-Run Status of the leveling motor over-run/Normal or Abnormal Condition can be displayed +B IG power supply voltage value/0 to 19.75 V 11 to 14 V
CLEAR FREEZE FRAME DATA NOTE: Clearing the DTCs will also clear the Freeze Frame Data. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Clear the DTC and Freeze Frame Data. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) .

FAIL-SAFE CHART

HID HEADLIGHT SYSTEM The light control ECU sub-assembly operates in fail-safe mode if an abnormal condition such as those listed below has been detected. Item Outline Detection of abnormal input voltage (High input voltage) If voltage that is input to the light control ECU is approximately 20 V or more, the ECU stops illuminating the headlights, and resumes when the voltage drops to 16 V or less. Detection of abnormal input voltage (Low input voltage) If voltage that is input to the light control ECU is 6 V or less, the ECU stops illuminating the low beam headlights, and resumes when the voltage becomes 10 V or more. Detection of abnormal output Open in output side circuit Short between output terminals Short between output terminal and body ground If an abnormal condition occurs in the voltage that is output by the light control ECU, the ECU stops illuminating the low beam headlights and will maintain this state until the power is reinstated (by turning the light control switch from off to head position). Detection of abnormal light voltage (Low light voltage) Approximately 80 seconds after input voltage is supplied, if the light voltage is below approximately 31 V for approximately 0.5 seconds, the light control ECU stops illuminating the low beam headlights and will maintain this state until the power is reinstated (by turning the light control switch from off to head position). Detection of abnormal light voltage (High light voltage) If the light voltage is above approximately 69 V for approximately 0.5 seconds, the light control ECU stops illuminating the low beam headlights and will maintain this state until the power is reinstated (by turning the light control switch from off to head position).
AUTOMATIC LIGHT CONTROL SYSTEM If the main body ECU (multiplex network body ECU) detects a malfunction in the automatic light control sensor, the main body ECU (multiplex network body ECU) performs fail-safe control to prohibit the automatic light control. If the low beam headlights and taillights are on, the lights will remain on until the light control switch is turned off.
AUTOMATIC HIGH BEAM SYSTEM The main body ECU (multiplex network body ECU) operates in fail-safe mode if an abnormal condition such as those listed below has been detected. Item Abnormality Detection Condition Return Condition Warning indicator Steering Angle Sensor Signal Malfunction Steering angle sensor malfunction is detected. Steering angle sensor malfunction is not detected, and engine switch is turned on (IG) again. Flashes Steering angle sensor zero point memory invalid is detected. Steering angle sensor zero point memory valid is detected. Not illuminated Steering angle sensor data continuity invalid is detected. Steering angle sensor data continuity invalid flag is detected. Not illuminated Speed Sensor Signal Malfunction Abnormal speed sensor signal is detected. Normal speed sensor signal is detected. Flashes CAN Communication Signal Malfunction Normal CAN communication signal is not detected for more than 10 seconds consecutively. Normal CAN communication signal is detected. Flashes Automatic High Beam Sensor Communication stopped for 10 seconds consecutively. Normal communication signal is detected. Flashes
AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM If the AFS ECU (headlight swivel ECU assembly) detects a malfunction in the automatic headlight beam level control system or AFS, it will take the actions indicated in the table below. W/ AFS Item Fail-safe Control for Automatic Headlight Beam Level Control Return Condition AFS OFF Indicator Light Headlight Swivel Motor Malfunction (LIN Communication malfunction) Continues control until a position that is 0.65° less than the current position is reached. Normal LIN communication signal is detected. Flashes Headlight Swivel Motor Malfunction (Open, Short or Over Heat) Continues control until a position that is 0.65° less than the current position is reached. Engine switch is turned on (IG) again. Flashes Headlight Swivel Motor Malfunction (Voltage Malfunction) Continues control until a position that is 0.65° less than the current position is reached. Normal condition is detected for 200 ms consecutively. Not illuminated Headlight Swivel Motor Gear Malfunction Continues control until a position that is 0.65° less than the current position is reached. Gear position change is detected. Flashes Headlight Leveling Motor Malfunction (LIN Communication malfunction) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Normal LIN communication signal is detected. Flashes Abnormal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Headlight Leveling Motor Malfunction (Open, Short or Over Heat) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Engine switch is turned on (IG) again. Flashes Abnormal Side Headlight Leveling Motor Stops at the current position. Headlight Leveling Motor Malfunction (Voltage Malfunction) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Normal condition is detected for 200 ms consecutively. Not illuminated Steering Angle Sensor Signal Malfunction Continues control. Engine switch is turned on (IG) again. Flashes Steering Angle Sensor Zero Point Memory Invalid Continues control. Steering angle sensor zero point memory valid is detected. Not illuminated Steering Angle Sensor Data Continuity Invalid Continues control. Steering angle sensor data continuity invalid flag is detected. Not illuminated Speed Sensor Signal Malfunction Continues to control using the normal speed sensor signal if one signal fails. Judges that the vehicle speed is 0 km/h and continues to control if both speed sensor signals fail. Normal condition is detected. Flashes Height Control Sensor Pitch Angle Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal condition is detected 2 times consecutively. Flashes Height Control Sensor Power Source Malfunction (w/o Air Suspension System) Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops the operation at the current position (Fail at lower than the initial position). Engine switch is turned on (IG) again. Flashes Height Control Sensor Power Source Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Engine switch is turned on (IG) again. Flashes Rear Height Control Sensor Signal Malfunction (w/o Air Suspension System) Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops the operation at the current position (Fail at lower than the initial position). Normal signal is detected 4 times consecutively. Flashes Rear Height Control Sensor Signal Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal signal is detected 4 times consecutively. Flashes Front Height Control Sensor Signal Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal signal is detected 4 times consecutively. Flashes CAN Communication Malfunction Skid Control ECU Judges that the vehicle speed is 0 km/h (0 mph) and continues control. Normal CAN communication is detected. Flashes Steering Angle Sensor Normally controls the system. ECM Continues control. Main Body ECU Continues control. AFS ECU Malfunction Continues control. Engine switch is turned on (IG) again. Flashes Height Control Sensor Initialization not be performed Locked. Initialization is finished. Flashes Height Control Sensor Data Malfunction when Initializing Locked. Initialization is finished. Flashes Vehicle Information not be synchronized Locked. Initialization is finished. Flashes Variation Error Locked. Variation is normal. Flashes W/O AFS Item Fail-safe Control for Automatic Headlight Beam Level Control Return Condition Master Warning Light Multi-information Display AFS OFF Indicator Light Headlight Leveling Motor Malfunction (LIN Communication malfunction) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Normal LIN communication signal is detected. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Abnormal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Headlight Leveling Motor Malfunction (Open, Short or Over Heat) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Engine switch is turned on (IG) again. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Abnormal Side Headlight Leveling Motor Stops at the current position. Headlight Leveling Motor Malfunction (Voltage Malfunction) Normal Side Headlight Leveling Motor Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops at the current position (Fail at lower than the initial position). Normal condition is detected for 200 ms consecutively. OFF Not illuminated Not illuminated Speed Sensor Signal Malfunction Continues to control using the normal speed sensor signal if one signal fails. Judges that the vehicle speed is 0 km/h and continues to control if both speed sensor signals fail. Normal condition is detected. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Height Control Sensor Pitch Angle Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal condition is detected 2 times consecutively. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Height Control Sensor Power Source Malfunction (w/o Air Suspension System) Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops the operation at the current position (Fail at lower than the initial position). Engine switch is turned on (IG) again. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Height Control Sensor Power Source Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Engine switch is turned on (IG) again. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Rear Height Control Sensor Signal Malfunction (w/o Air Suspension System) Stops the operation after returning to the initial position (Fail at higher than the initial position). Stops the operation at the current position (Fail at lower than the initial position). Normal signal is detected 4 times consecutively. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Rear Height Control Sensor Signal Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal signal is detected 4 times consecutively. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Front Height Control Sensor Signal Malfunction (w/ Air Suspension System) Stops the operation after returning to the initial position (Fail at more than 0.2% higher than the initial position). Stops the operation after returning to the 0.2% lower than current position (Fail at more than 0.2% lower than the initial position). Normal signal is detected 4 times consecutively. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated CAN Communication Malfunction Skid Control ECU Judges that the vehicle speed is 0 km/h (0 mph) and continues control. Normal CAN communication is detected. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Steering Angle Sensor Normally controls the system. Others Continues control. AFS ECU Malfunction Continues control. Engine switch is turned on (IG) again. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Height Control Sensor Initialization not be performed Locked. Initialization is finished. OFF Not illuminated Flashes Height Control Sensor Data Malfunction when Initializing Locked. Initialization is finished. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated Vehicle Specification not be stored Locked. Vehicle specification is stored. OFF Not illuminated Flashes Variation Error Locked. Variation is normal. ON CHECK HEADLIGHT LEVELING SYSTEM Not illuminated
AFS If the AFS ECU (headlight swivel ECU assembly) detects a malfunction in the AFS or automatic headlight beam level control system, it will take the actions indicated in the table below. Item Fail-safe Control for AFS Control Return Condition AFS OFF Indicator Light Headlight Swivel Motor Malfunction (LIN Communication malfunction) Normal Side Headlight Swivel Motor Stops operating after returning to the initial position. Normal LIN communication signal is detected. Flashes Abnormal Side Headlight Swivel Motor Stops operating after returning to the initial position. Headlight Swivel Motor Malfunction (Open, Short or Over Heat) Normal Side Headlight Swivel Motor Stops operating after returning to the initial position. Engine switch is turned on (IG) again. Flashes Abnormal Side Headlight Swivel Motor Stops at the current position. Headlight Swivel Motor Malfunction (Voltage Malfunction) Normal Side Headlight Swivel Motor Stops operating after returning to the initial position. Normal condition is detected for 200 ms consecutively. Not illuminated Abnormal Side Headlight Swivel Motor Stops at the current position. Headlight Swivel Motor Gear Malfunction Normal Side Headlight Swivel Motor Stops operating after returning to the initial position. Gear position change is detected. Flashes Abnormal Side Headlight Swivel Motor Stops at the current position. Headlight Leveling Motor Malfunction (LIN Communication malfunction) Stops operating after returning to the initial position. Normal LIN communication signal is detected. Flashes Headlight Leveling Motor Malfunction (Open, Short or Over Heat) Stops operating after returning to the initial position. Engine switch is turned on (IG) again. Flashes Headlight Leveling Motor Malfunction (Voltage Malfunction) Stops operating after returning to the initial position. Normal condition is detected for 200 ms consecutively. Not illuminated Steering Angle Sensor Signal Malfunction Stops operating after returning to the initial position. Engine switch is turned on (IG) again. Flashes Steering Angle Sensor Zero Point Memory Invalid Stops operating after returning to the initial position. Steering angle sensor zero point memory valid is detected. Not illuminated Steering Angle Sensor Data Continuity Invalid Stops operating after returning to the initial position. Steering angle sensor data continuity invalid flag is detected. Not illuminated Speed Sensor Signal Malfunction Stops operating after returning to the initial position. Normal condition is detected. Flashes Height Control Sensor Pitch Angle Malfunction (w/ Air Suspension System) Stops operating after returning to the initial position. Normal condition is detected for 2 times consecutively. Flashes Height Control Sensor Power Source Malfunction (w/o Air Suspension System) Stops operating after returning to the initial position. Engine switch is turned on (IG) again. Flashes Rear Height Control Sensor Signal Malfunction Stops operating after returning to the initial position. Normal signal is detected 4 times consecutively. Flashes Rear Height Control Sensor Signal Malfunction Stops operating after returning to the initial position. Normal signal is detected 4 times consecutively. Flashes CAN Communication Malfunction Stops operating after returning to the initial position or continues control. Normal CAN communication is detected. Flashes AFS ECU Malfunction Stops operating after returning to the initial position. Engine switch is turned on (IG) again. Flashes Height Control Sensor Initialization not be performed Stops operating after returning to the initial position. Initialization is finished. Flashes Height Control Sensor Data Malfunction when Initializing Stops operating after returning to the initial position. Initialization is finished. Flashes Vehicle Information not be synchronized Stops operating after returning to the initial position. Initialization is finished. Flashes Variation Error Stops operating after returning to the initial position. Variation is normal. Flashes

Lighting (Diagnostics - Introduction): Other Lexus RX III