Lighting: Overview Lexus SC II рестайлинг

SYSTEM DESCRIPTION

1. FUNCTION OF MAIN COMPONENTS FUNCTION OF MAIN COMPONENTS Components Function Automatic light control sensor Detects brightness around and sends information to driver side junction block ECU Hazard warning switch Its on or off state is sent to driver side junction block ECU Stop light switch Sends brake pedal state to driver side junction block ECU Ignition switch Its ON / ACC / OFF state is sent to driver side junction block ECU Door courtesy switch Detects door open / closed state and sends information to respective door ECU PNP switch Detects shift position and sends information to ECM Parking brake switch Detects parking brake state and sends information to skid control ECU Headlight unit Moves headlights up and down according to information from AFS ECU Height control sensor Detects vehicle height and sends corresponding information to AFS ECU
2. OPERATION DESCRIPTION Manual lighting system The manual lighting system is controlled by the front light ECU based on the signals listed below. OPERATION DESCRIPTION - MANUAL LIGHTING SYSTEM Received Sends ON / OFF operation Clearance light switch signal Clearance light ON demand signal Clearance light High beam light switch signal High beam ON signal Headlight (high) Headlight switch signal Headlight ON demand signal Headlight (low) Taillight switch signal Front fog light switch signal Front fog light ON signal Front fog light Front side make light Automatic light control system The automatic light system is controlled by the driver side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - AUTOMATIC LIGHT CONTROL SYSTEM Received Sends ON / OFF operation Light switch auto switch signal Headlight ON demand signal (low) Headlight Clearance light License plate light Light control switch signal High beam ON signal / Taillight ON demand signal Front side marker light Taillight Turn signal light system The turn signal light system is controlled by the driver side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - TURN SIGNAL LIGHT SYSTEM Received Sends ON / OFF operation Right turn signal or hazard warning signal Right turn ON demand signal Right turn signal light Left turn signal or hazard warning signal Left turn ON demand signal Left turn signal light Daytime running light system The daytime running light system is controlled by the driver side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - DAYTIME RUNNING LIGHT SYSTEM Received Sends ON / OFF operation Headlight switch signal Light switch auto signal light control switch signal Shift position D signal Parking brake switch signal Daytime running light ON demand signal Headlight (high) Stop light system The stop light system is controlled by the luggage room junction block ECU based on the signals listed below. OPERATION DESCRIPTION - STOP LIGHT SYSTEM Received Sends ON / OFF operation Stop light signal Brake control signal Stop light ON demand signal Stop light Center stop light Back-up light system The back-up light system is controlled by the luggage room junction block ECU based on the signals listed below. OPERATION DESCRIPTION - BACK-UP LIGHT SYSTEM Received Sends ON / OFF operation Shift position R signal Back-up light ON demand signal Back-up light Illumination entry system The illumination entry system is controlled by the passenger side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - ILLUMINATION ENTRY SYSTEM Received Sends ON / OFF operation Driver side door courtesy light switch signal Passenger side door courtesy light switch signal Driver door lock signal Passenger door lock signal Ignition switch signal Illumination ON demand signal Ignition key cylinder light Map light Stop light system The step light system is controlled by the passenger side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - STOP LIGHT SYSTEM Received Sends ON / OFF operation Driver side door courtesy light switch signal Passenger side door courtesy light switch signal Driver door lock signal Passenger door lock signal Ignition switch signal Stop light ON demand signal Stop light Buckle illumination system The buckle illumination system is controlled by the driver side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - BUCKLE ILLUMINATION SYSTEM Received Sends ON / OFF operation Driver side door courtesy light switch signal Passenger side door courtesy light switch signal Driver door lock signal Passenger door lock signal Ignition switch signal Buckle illumination ON demand signal Buckle illumination Door courtesy light system The courtesy light system is controlled by the driver side junction block ECU based on the signals listed below. OPERATION DESCRIPTION - DOOR COURTESY LIGHT SYSTEM Received Sends ON / OFF operation Driver side door courtesy light switch signal Passenger side door courtesy light switch signal Courtesy light ON demand signal Courtesy light AFS The AFS is controlled by the AFS ECU based on the signals listed below. OPERATION DESCRIPTION - AFS Received Sends ON / OFF operation Headlight signal Steering sensor signal Vehicle speed signal Height control sensor signal Headlight swivel motor operation demand signal Headlight beam level control actuator operation demand signal Headlight swivel motor Headlight beam level control actuator AFS OFF switch signal AFS OFF indicator light ON demand signal AFS OFF indicator light

DESCRIPTION

This DTC is output when a failure of the light control sensor circuit is detected.

DTC DETECTION CONDITION AND TROUBLE AREA

Automatic Light Control Sensor - Wiring Diagram. Scheme 1

Scheme 2

1. CHECK OPERATION (AUTOMATIC LIGHT CONTROL SENSOR) Connect the intelligent tester (with CAN VIM) to the DLC3. Turn the ignition switch ON and intelligent tester main switch ON. Check that the value of the illumination rate changes in the following range when the light sensor is put in the light or covered by a hand. OK: 0.008 to 0.022 seconds HINT: This is the time taken for the light sensor to generate one cycle of frequency according to the brightness. When not using intelligent tester, refer to the following procedures (see «ON-VEHICLE INSPECTION»(ref-283186-S36753367792008041900000) ). NG: REPLACE AUTOMATIC LIGHT CONTROL SENSOR OK: Go to Next step
2. CHECK WIRE HARNESS (ECU - SENSOR) Disconnect the D5 ECU connector. Disconnect the A26 sensor connector. Measure the resistance of the wire harness side connectors. (Scheme 2): Identifying Driver Side Junction Block ECU And Automatic Light Control Sensor Connector Terminals Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D5-2 (CLTB) - A26-6 (CLTB) Below 1 ohms D5-13 (CLTS) - A26-5 (CLTS) Below 1 ohms D5-14 (CLTE) - A26-3 (CLTE) Below 1 ohms D5-2 (CLTB) - Body ground 10 kohms or higher D5-13 (CLTS) - Body ground 10 kohms or higher D5-14 (CLTE) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: REPLACE DRIVER SIDE JUNCTION BLOCK

This DTC is output when a B+ or GND short occurs on the back-up communication bus (BU+, BU-).

DTC DETECTION CONDITION AND TROUBLE AREA

Turn Signal Switch - Wiring Diagram. Scheme 3

Scheme 4

Scheme 5

1. INSPECT LUGGAGE ROOM JUNCTION BLOCK Disconnect the L24 ECU connector. Check the DTC. OK: DTC B1268 is not output. OK: REPLACE LUGGAGE ROOM JUNCTION BLOCK NG: Go to Next step
2. INSPECT TURN SIGNAL SWITCH ASSEMBLY Connect the L24 ECU connector. Disconnect the C11 switch connector. Check the DTC. OK: DTC B1268 is not output. OK: REPLACE TURN SIGNAL SWITCH ASSEMBLY NG: Go to Next step
3. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - SWITCH) (Scheme 4): Identifying Driver Side Junction Block ECU And Turn Signal Switch Connector Terminals Disconnect the D4 ECU connector. Disconnect the C11 switch connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D4-10 (BU+) - C11-11 (TX1) Below 1 ohms D4-8 (HEAD) - C11-4 (HEAD) Below 1 ohms D4-10 (BU+) - Body ground 10 kohms or higher D4-8 (HEAD) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - LUGGAGE ROOM JUNCTION BLOCK ECU) (Scheme 5): Identifying Driver Side Junction Block ECU And Luggage Room Junction Block ECU Terminals Disconnect the D3 ECU connector. Disconnect the L24 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D3-6 (BU-) - L24-10 (BUBS) Below 1 ohms D3-6 (BU-) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: REPLACE DRIVER SIDE JUNCTION BLOCK

The electric current flowing in the transistor inside the junction block is examined by the ECU.

When an excessive current is detected, DTC B2402 is output.

When overheating occurs prior to an excessive current, the ECU cuts off the current in the transistor to prevent it from being damaged and outputs DTC B2403.

Normally, turning OFF the ignition switch clears DTC. However, if an excessive current is detected frequently (9 times or more), DTC may not be cleared.

When this happens, disconnect the cable from the negative (-) battery terminal to clear DTC.

DTC DETECTION CONDITION AND TROUBLE AREA

HINT

When DTC B2403 is output, DTC B2402 is also output.

The swivel actuator receives the signal from the AFS ECU to operate and sends the signal regarding the direction of the headlight swivel actuator and condition of the headlight swivel actuator swivel motor to the AFS ECU.

DTC DETECTION CONDITION AND TROUBLE AREA

Headlight Swivel Actuator - Wiring Diagram. Scheme 6

Scheme 7

Scheme 8

Scheme 9

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SWIVEL MOTOR) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the swivel motor operates. AFS ECU ACTIVE TEST DETAIL - AFS ECU Item Test Details Diagnostic Note SWIVEL MTR (RH) Drive the swivel motor RIGHT / OFF - SWIVEL MTR (LH) Drive the swivel motor LEFT / OFF - OK: Swivel actuator operates. OK: REPLACE AFS ECU NG: Go to Next step
2. INSPECT HEADLIGHT SWIVEL ACTUATOR Disconnect the H19*1 or H20*2 actuator connector. HINT: *1: LH *2: RH Measure the resistance of the actuator connector. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition 1 (BL1+) - 2 (BL1-) 6 to 8 ohms 3 (BL2+) - 4 (BL2-) 6 to 8 ohms (Scheme 7): Identifying Headlight Swivel Actuator Connector Terminals RH RESISTANCE SPECIFICATION Tester Connection Specified Condition 1 (BR1+) - 2 (BR1-) 6 to 8 ohms 3 (BR2+) - 4 (BR2-) 6 to 8 ohms HINT: Measure the resistance after the headlight swivel actuator has cooled. NG: REPLACE HEADLIGHT SWIVEL ACTUATOR OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - ACTUATOR) Disconnect the A30 ECU connector. Disconnect the H19*1 or H20*2 actuator connector. HINT: *1: LH *2: RH Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-19 - H19-5 (SMGL) Below 1 ohms A30-22 - H19-6 (SML) Below 1 ohms A30-24 - H19-7 (SMBL) Below 1 ohms A30-25 (BL) - H19-1 (BL1+) Below 1 ohms A30-26 - H19 - 2 (BL1-) Below 1 ohms A30-27 - H19-3 (BL2+) Below 1 ohms A30-28 - H19-4 (BL2-) Below 1 ohms A30-19 - Body ground 10 kohms or higher A30-22 - Body ground 10 kohms or higher A30-24 - Body ground 10 kohms or higher A30-25 (BL) - Body ground 10 kohms or higher A30-26 - Body ground 10 kohms or higher A30-27 - Body ground 10 kohms or higher A30-28 - Body ground 10 kohms or higher (Scheme 8): Identifying AFS ECU And Headlight Swivel Actuator Connector Terminals RH RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-9 - H20-1 (BR1+) Below 1 ohms A30-10 - H20-2 (BR1-) Below 1 ohms A30-11 - H20-3 (BR2+) Below 1 ohms A30-12 - H20-4 (BR2-) Below 1 ohms A30-18 - H20-5 (SMGR) Below 1 ohms A30-21 - H20-6 (SMR) Below 1 ohms A30-23 - H20-7 (SMBR) Below 1 ohms A30-9 - Body ground 10 kohms or higher A30-10 - Body ground 10 kohms or higher A30-11 - Body ground 10 kohms or higher A30-12 - Body ground 10 kohms or higher A30-18 - Body ground 10 kohms or higher A30-21 - Body ground 10 kohms or higher A30-23 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK AFS ECU Disconnect the H19*1 or H20*2 actuator connector. HINT: *1: LH *2: RH Measure the voltage of the connector. Standard voltage LH VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition 5 (SMGL) - 6 (SMBL) Ignition Switch ON 4.5 to 5.5 V 5 (SMGL) - 6 (SMBL) Ignition Switch OFF Below 1 V (Scheme 9): Identifying AFS ECU Connector Terminals RH VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition 5 (SMGR)- 6 (SMBR) Ignition Switch ON 4.5 to 5.5 V 5 (SMGR)- 6 (SMBR) Ignition Switch OFF Below 1 V NG: REPLACE AFS ECU OK: REPLACE HEADLIGHT SWIVEL ACTUATOR

The AFS ECU receives signals regarding the swerve-angle from the steering sensor in the steering wheel.

DTC DETECTION CONDITION AND TROUBLE AREA

Steering Angle Sensor - Wiring Diagram. Scheme 10

Scheme 11

Scheme 12

1. READ VALUE OF INTELLIGENT TESTER (STEERING SENSOR) Check the DATA LIST for proper functioning of the steering sensor. AFS ECU DATA LIST - AFS ECU Item Measurement Item / Display (Range) Normal Condition Diagnostic Note STEER SENS SIG Steering sensor signal value / -384 to 382.5 Condition value will be displayed. - OK: Condition value will be displayed. OK: REPLACE AFS ECU NG: Go to Next step
2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) Check for DTCs of the vehicle stability control system (see «DTC CHECK / CLEAR»(ref-283150-S20926739912008041900000) ). OK: Normal system code is output. NG: GO TO «VEHICLE STABILITY CONTROL SYSTEM»(ref-283150-S29472270742008041900000) OK: Go to Next step
3. CHECK WIRE HARNESS (SENSOR - ECU) Disconnect the S9 sensor connector. Disconnect the A31 ECU connector. (Scheme 11): Identifying Steering Angle Sensor And AFS ECU Connector Terminals Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition S9-7 (SS2-) - A31-8 (SS-) Below 1 ohms S9-8 (SS2+) - A31-7 (SS+) Below 1 ohms S9-7 (SS2-) - Body ground 10 kohms or higher S9-8 (SS2+) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK AFS ECU (Scheme 12): Identifying AFS ECU Connector Terminals Measure the voltage of the connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Switch Condition Specified Condition A31-7 (SS+) - A31-8 (SS-) Ignition switch ON 0 to 5 V (Pulse generation) NG: REPLACE STEERING SENSOR OK: REPLACE AFS ECU

The AFS ECU receives signals regarding the front wheel speed from the skid control ECU.

DTC DETECTION CONDITION AND TROUBLE AREA

Skid Control ECU - Wiring Diagram. Scheme 13

Scheme 14

Scheme 15

1. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) Check for DTCs of the vehicle stability control system (see «DTC CHECK / CLEAR»(ref-283150-S20926739912008041900000) ). OK: Normal system code is not output. NG: GO TO «VEHICLE STABILITY CONTROL SYSTEM»(ref-283150-S29472270742008041900000) OK: Go to Next step
2. CHECK WIRE HARNESS (AFS ECU - SKID CONTROL ECU) (Scheme 14): Identifying AFS ECU And Skid Control ECU Connector Terminals Disconnect the A30 ECU connector. Disconnect the S6 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-6 (SPDL) - S6-25 (FLO) Below 1 ohms A30-6 (SPDL) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
3. CHECK AFS ECU (Scheme 15): Identifying AFS ECU Connector Terminals And Waveform Graph Measure the voltage of the connector. OK TESTER CONNECTION AND TEST SETTING Tester Connection Test Setting Condition A30-6 (SPDL) - Body ground 5 V/DIV, 2 msec./DIV. Vehicle is driven at approx. 30 km/h (19 mph) NG: REPLACE SKID CONTROL ECU OK: REPLACE AFS ECU

The AFS ECU receives signals regarding the height of the front / rear of the vehicle from the height control sensors.

DTC DETECTION CONDITION AND TROUBLE AREA

Height Control Sensor - Wiring Diagram. Scheme 16

Scheme 17

Scheme 18

Scheme 19

1. READ VALUE OF INTELLIGENT TESTER (HEIGHT SENSOR) Check the DATA LIST for proper functioning of the height sensor. AFS ECU DATA LIST - AFS ECU Item Measurement Item / Display (Range) Normal condition Diagnostic Note FR HEIGHT SENS Front height sensor signal value / 0 to 5 V Approx. 2.5 V - RR HEIGHT SENS Rear height sensor signal value / 0 to 5 V Approx. 2.5 V - OK: Condition value will be displayed. OK: REPLACE AFS ECU NG: Go to Next step
2. CHECK WIRE HARNESS (ECU - SENSOR) (Scheme 17): Identifying Height Control Sensors And AFS ECU Connector Terminals Disconnect the A30*1 or A31*2 ECU connector. Disconnect the H11*1 or H17*2 sensor connector. HINT: *1: Front *2: Rear Measure the resistance of the wire harness side connectors. Standard resistance: Front RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-1 (SBF) - H11-1(SHB) Below 1 ohms A30-2 (SHFL) - H11-2 (SHFL) Below 1 ohms A30-17 (SFG) - H11-4 (SHG) Below 1 ohms A30-1 (SBF) - Body ground 10 kohms or higher A30-2 (SHFL) - Body ground 10 kohms or higher A30-17 (SFG) - Body ground 10 kohms or higher Rear RESISTANCE SPECIFICATION Tester Connection Specified Condition A31-10 (SBR) - H17-1 (SHB) Below 1 ohms A31-9 (SHRL) - H17-2 (SHFL) Below 1 ohms A31-20 (SGR) - H17-3 (SHG) Below 1 ohms A31-10 (SBR) - Body ground 10 kohms or higher A31-9 (SHRL) - Body ground 10 kohms or higher A31-20 (SGR) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
3. INSPECT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY (Scheme 18): Inspecting Front Height Control Sensor Sub-Assembly Connect 3 dry cell batteries (1.5 V) in series. Connect the dry cell battery positive (+) terminal to terminal 1 (SHB) and the negative one to terminal 4 (SHG) to apply the voltage of 4.5 V between terminals 1 (SHB) and 4 (SHG). While slowly moving the link up and down with the voltage being applied, measure the voltage between terminals 2 (SHFL) and 4 (SHG). Standard voltage VOLTAGE SPECIFICATION Link Angle Specified Condition +45° (High) 4.5 V 0° (Normal) 2.5 V -45° (Low) 0.5 V NG: REPLACE FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY OK: Go to Next step
4. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (Scheme 19): Inspecting Rear Height Control Sensor Sub-Assembly Connect 3 dry cell batteries (1.5 V) in series. Connect the dry cell battery positive (+) terminal to terminal 3 (SHB) and the negative one to terminal 1 (SHG) to apply the voltage of 4.5 V between terminals 3 (SHB) and 1 (SHG). While slowly moving the link up and down with the voltage being applied, measure the voltage between terminals 2 (SHRL) and 1 (SHG). Standard voltage VOLTAGE SPECIFICATION Link Angle Specified Condition +45° (High) 4.5 V 0° (Normal) 2.5 V -45° (Low) 0.5 V NG: REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY OK: REPLACE AFS ECU

The leveling actuator receives the signal from the AFS ECU to operate. The AFS ECU receives signals regarding the operating conditions of the leveling actuator.

DTC DETECTION CONDITION AND TROUBLE AREA

Headlight Beam Level Control Actuator - Wiring Diagram. Scheme 20

Scheme 21

Scheme 22

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HEADLIGHT BEAM LEVEL CONTROL ACTUATOR) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the headlight beam level control actuator operates. AFS ECU ACTIVE TEST DETAIL - AFS ECU Item Test Details Diagnostic Note LEVEL CONTROL MTR Drive leveling motor UP / DOWN - OK: headlight beam leveling control actuator operates. OK: REPLACE AFS ECU NG: Go to Next step
2. CHECK WIRE HARNESS (ECU - ACTUATOR) Disconnect the H1*1 or H2*2 actuator connector. HINT: *1: LH *2: RH Disconnect the A30 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-29 (LL1+) - H1-3 (LL1+) Below 1 ohms A30-30 (LL1-) - H1-4 (LL1-) Below 1 ohms A30-31 (LL2+) - H1-1 (LL2+) Below 1 ohms A30-32 (LL2-) - H1-2 (LL2-) Below 1 ohms A30-29 (LL1+) - Body ground 10 kohms or higher A30-30 (LL1-) - Body ground 10 kohms or higher A30-31 (LL2+) - Body ground 10 kohms or higher A30-32 (LL2-) - Body ground 10 kohms or higher (Scheme 21): Identifying Headlight Beam Level Control Actuator And AFS ECU Connector Terminals RH RESISTANCE SPECIFICATION Tester Connection Specified Condition A30-13 (LR1+) - H2-3 (LR1+) Below 1 ohms A30-14 (LR1-) - H2-4 (LR1-) Below 1 ohms A30-15 (LR2+) - H2-1 (LR2+) Below 1 ohms A30-16 (LR2-) - H2-2 (LR2-) Below 1 ohms A30-13 (LR1+) - Body ground 10 kohms or higher A30-14 (LR1-) - Body ground 10 kohms or higher A30-15 (LR2+) - Body ground 10 kohms or higher A30-16 (LR2-) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
3. INSPECT HEADLIGHT ASSEMBLY (HEADLIGHT BEAM LEVEL CONTROL ACTUATOR) (Scheme 22): Identifying Headlight Beam Level Control Actuator Connector Terminals Remove the headlight unit. Measure the resistance of the unit. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition 3 (LL1+) - 4 (LL1-) 26 to 30 ohms 1 (LL2+) - 2 (LL2-) 26 to 30 ohms RH RESISTANCE SPECIFICATION Tester Connection Specified Condition 3 (LR1+) - 4 (LR1-) 26 to 30 ohms 1 (LR2+) - 2 (LR2-) 26 to 30 ohms NG: REPLACE HEADLIGHT ASSEMBLY OK: REPLACE AFS ECU

The AFS ECU receives signals regarding the lighting condition of the headlight, shift position of the transmission, engine condition from the generator and vehicle speed from the combination meter using multiplex communication. When the DTC B2419 is output, other DTCs are output at the same time.

DTC DETECTION CONDITION AND TROUBLE AREA

When the AFS ECU detects a malfunction in itself, a DTC is output.

DTC DETECTION CONDITION AND TROUBLE AREA

This circuit detects the conditions of the stop light switch.

Stop Light Switch - Wiring Diagram. Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. READ VALUE OF INTELLIGENT TESTER (STOP LIGHT SWITCH) Check the DATA LIST for proper functioning of the stop light switch. Driver side junction block ECU DATA LIST - DRIVER SIDE JUNCTION BLOCK ECU Item Measurement Item / Display (Range) Normal Condition Diagnostic Note STOP LIGHT SW Stop light switch / ON or OFF ON: Brake pedal depressed OFF: Brake pedal released - OK: ON (brake pedal is depressed) appears on the screen. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT STOP LIGHT SWITCH ASSEMBLY (Scheme 24): Inspecting Stop Light Switch Assembly Remove the stop light switch. Measure the resistance of the switch. Standard resistance RESISTANCE SPECIFICATION Tester Connection Switch Condition Specified Condition 1 - 2 Pushed Below 1 ohms 1 - 2 Not pushed 10 kohms higher NG: REPLACE STOP LIGHT SWITCH ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (SWITCH - DRIVER SIDE JUNCTION BLOCK ECU AND BATTERY) (Scheme 25): Identifying Stop Light Switch And Driver Side Junction Block ECU Connector Terminals Disconnect the S10 switch connector. Disconnect the D2 ECU connector. Disconnect the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition S10-2 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition S10-1 - D2-13(STP1) Below 1 ohms S10-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - ECM) (Scheme 26): Identifying Driver Side Junction Block ECU And ECM Connector Terminals Disconnect the D2 ECU connector. Disconnect the E5 ECM connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D2-12 (STPO) - E5-4 (STP) Below 1 ohms D2-12 (STPO) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
5. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - SHIFT CONTROL ECU) (Scheme 27): Identifying Driver Side Junction Block ECU And Shift Control ECU Connector Terminals Disconnect the D4 ECU connector. Disconnect the S4 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D4-4 (STP) - S4-9 (STP) Below 1 ohms D4-4 (STP) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
6. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - SHIFT CONTROL ECU) (Scheme 28): Identifying Driver Side Junction Block ECU And Shift Control ECU Connector Terminals Disconnect the D4 ECU connector. Disconnect the S7 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D4-4 (STP) - S7-9 (STP) Below 1 ohms D4-4 (STP) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The headlight relay is turned "ON" by operating the headlight switch.

Headlight Relay - Wiring Diagram. Scheme 29

Scheme 30

Scheme 31

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HEADLIGHT RELAY) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the headlight illuminates. Driver side junction block ECU ACTIVE TEST DETAIL - DRIVER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note HEAD LIGHT Headlight relay ON / OFF - OK: Headlight illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT RELAY (Marking: HEAD LP) Remove the HEAD LP relay from the engine room No. 1 relay block. (Scheme 30): Identifying Head LP Relay Connector Terminals Measure the resistance of the relay. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition 1 - 2 10 kohms or higher 1 - 2 Below 1ohms (when battery voltage is applied to terminals 3 and 4) NG: REPLACE RELAY OK: Go to Next step
3. CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK ECU - BODY GROUND) (Scheme 31): Identifying Driver Side Junction Block ECU Connector Terminals Disconnect the D2 ECU connector. Using a service wire, connect D2-7 (HRLY) on the wire harness side and body ground. Check that the headlight illuminates. OK: Headlight illuminates. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The front light ECU receives headlight HI switch information from the combination switch, and illuminates the headlights.

Headlight Control ECU - Wiring Diagram. Scheme 32

Scheme 33

Scheme 34

Scheme 35

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (HEADLIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the headlight illuminates. Front light ECU (Front controller) ACTIVE TEST DETAIL - FRONT LIGHT ECU (FRONT CONTROLLER) Item Test Details Diagnostic Note HEAD LIGHT (HI) Headlight (High) ON / OFF - OK: Headlight illuminates. Driver side junction block ECU ACTIVE TEST DETAIL - DRIVER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note HEAD LIGHT Headlight relay ON / OFF - OK: Headlight illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT HEADLIGHT AIMING (Scheme 33): Identifying Headlight Connector Terminals Remove the headlight. Apply battery voltage to the headlight connector and check that the headlight illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Headlight illuminates NG: REPLACE HEADLIGHT AIMING OK: Go to Next step
3. CHECK WIRE HARNESS (FRONT LIGHT ECU - BATTERY AND BODY GROUND) (Scheme 34): Identifying Front Light ECU Connector Terminals Remove the front light ECU. Measure the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition Relay block light ECU terminal 13 (FHHI (1)) - Body ground 10 to 14 V Relay block light ECU terminal 14 (FHHI (2)) - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (HEADLIGHT - FRONT LIGHT ECU AND BODY GROUND) (Scheme 35): Identifying Headlight And Front Light ECU Connector Terminals Disconnect the H5*1 or H7*2 light connector. HINT: *1: LH *2: RH Remove the front light ECU. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition H5-2 - Relay block light ECU terminal 2 (HLHL) Below 1 ohms H5-1 - Body ground Below 1 ohms H5-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition H7-2 - Relay block light ECU terminal 14 (HLHR) Below 1 ohms H7-1 - Body ground Below 1 ohms H7-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The front light ECU receives the fog light switch information from the combination switch, and illuminates the fog lights.

Front Fog Light - Wiring Diagram. Scheme 36

Scheme 37

Scheme 38

Scheme 39

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (FRONT FOG LIGHT RELAY) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the front fog light relay operates. Front light ECU (Front controller) ACTIVE TEST DETAIL - FRONT LIGHT ECU (FRONT CONTROLLER) Item Test Details Diagnostic Note F FOG LIGHT RLY Front fog light relay ON / OFF - OK: Fog light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT FRONT FOG LIGHT ASSEMBLY (Scheme 37): Identifying Front Fog Light Connector Terminals Remove the front fog light. Apply battery voltage to the front fog light connector and check that the front fog light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Front fog light illuminates NG: REPLACE FRONT FOG LIGHT ASSEMBLY OK: Go to Next step
3. INSPECT RELAY (Marking: FR FOG) (Scheme 38): Identifying FR FOG Relay Connector Terminals Remove the FR FOG relay from the engine room No. 2 relay block. Measure the resistance of the relay. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (when battery voltage is applied to terminals 1 and 2) NG: REPLACE RELAY OK: Go to Next step
4. CHECK WIRE HARNESS (ECU - BODY GROUND) Remove the front light ECU from the relay block. (Scheme 39): Identifying Front Fog Light ECU Connector Terminals Using a service wire, connect the front light ECU terminal 16 (FFOG-RLY) of the engine room No. 2 relay block on the wire harness side and body ground. Check that the front fog light illuminates. OK: Front fog light illuminates. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

After receiving the signal of the turn signal switch from the driver side junction block ECU, the driver side junction block ECU makes the turn signal light illuminate.

The driver side junction block ECU activates the flasher relay while the theft deterrent system gives the warning and illuminates the turn signal light and hazard warning light.

Turn Signal Light - Wiring Diagram. Scheme 40

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (TURN SIGNAL LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the turn signal light illuminates. Driver side junction block ECU ACTIVE TEST DETAIL - DRIVER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note TRN SIG LGT L Turn signal light operation / ON or OFF - TRN SIG LGT R Turn signal light operation / ON or OFF - OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT FRONT TURN SIGNAL LIGHT ASSEMBLY (Scheme 41): Identifying Front Turn Signal Light Connector Terminals Remove the front turn signal light. Apply battery voltage to the front turn signal light connector and check that the front turn signal light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Front turn signal light illuminates NG: REPLACE FRONT TURN SIGNAL LIGHT ASSEMBLY OK: Go to Next step
3. INSPECT REAR COMBINATION LIGHT ASSEMBLY (TURN SIGNAL LIGHT) Remove the rear combination light. (Scheme 42): Identifying Rear Combination Light Connector Terminals Apply battery voltage to the front turn signal light connector and check that the turn signal light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 4 Turn signal light illuminates NG: REPLACE REAR COMBINATION LIGHT ASSEMBLY OK: Go to Next step
4. INSPECT TURN SIGNAL FLASHER ASSEMBLY Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 3. Connect the 2 turn signal light bulbs parallel to each other to terminals 1 and 2, and check that the bulbs flash. OK: Bulbs flash. HINT: The turn signal lights should flash 60 to 120 times per minute. If one of the front or rear turn signal lights has an open circuit, the number of flashes will be more than 140 per minute. (Scheme 43): Inspecting Turn Signal Flasher Assembly NG: REPLACE TURN SIGNAL FLASHER ASSEMBLY OK: Go to Next step
5. CHECK WIRE HARNESS (FLASHER - ECU AND BODY GROUND) (Scheme 44): Identifying Turn Signal Flasher And Driver Side Junction Block ECU Connector Terminals Disconnect the T15 flasher connector. Disconnect the 2E junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition T15-1 - 2E-13 (TURN LH) Below 1 ohms T13-2 - 2E-18 (TURN RH) Below 1 ohms T15-3 - Body ground Below 1 ohms T15-1 - Body ground 10 kohms or higher T15-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
6. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the F7*1 or F8*2 light connector. HINT: *1: LH *2: RH Disconnect the 2D junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition F7-2 - 2D-2 (TURN LH) Below 1 ohms F7-1 - Body ground Below 1 ohms F7-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition F8-2 - 2D-6 (TURN RH) Below 1 ohms F8-1 - Body ground Below 1 ohms F8-2 - Body ground 10 kohms or higher (Scheme 45): Identifying Front Turn Signal Light And Driver Side Junction Block ECU Connector Terminals NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
7. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the R6*1 or R7*2 light connector. HINT: *1: LH *2: RH Disconnect the 2E junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition R6-2 - 2E-13 (TURN LH) Below 1 ohms R6-4 - Body ground Below 1 ohms R6-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition R7-2 - 2E-18 (TURN RH) Below 1 ohms R7-4 - Body ground Below 1 ohms R7-2 - Body ground 10 kohms or higher (Scheme 46): Identifying Rear Combination Light And Driver Side Junction Block ECU Connector Terminals NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The hazard warning switch sends a signal to the driver side junction block ECU.

Hazard Warning Switch - Wiring Diagram. Scheme 47

Scheme 48

Scheme 49

Scheme 50

1. INSPECT A/C CONTROL ASSEMBLY (HAZARD WARNING SWITCH) (Scheme 48): Identifying Hazard Warning Switch Connector Terminals Remove the A/C control. Measure the resistance of the A/C control. Standard resistance RESISTANCE SPECIFICATION Tester Connection Switch Condition Specified Condition A9-12 - A10-14 Hazard warning switch ON Below 1 ohms A9-12 - A10-14 Hazard warning switch OFF 10 kohms or higher NG: REPLACE A/C CONTROL ASSEMBLY OK: Go to Next step
2. CHECK WIRE HARNESS (A/C CONTROL - ECU AND BODY GROUND) (Scheme 49): Identifying A/C Control Assembly And Driver Side Junction Block ECU Connector Terminals Disconnect the A9 and A10 A/C control connectors. Disconnect the D4 ECU connector. Measure the resistance of the Identifying harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A9-12 - D4-2 (HAZ) Below 1 ohms A10-14 - Body ground Below 1 ohms A9-12 - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - BATTERY) Disconnect the 2D junction block connector. (Scheme 50): Identifying 2D Junction Block Connector Terminals Measure the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition 2D-3 (HAZ) - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the combination switch TAIL signal is received from the luggage room junction block ECU, the taillight illuminates.

Rear Combination Light - Wiring Diagram. Scheme 51

Scheme 52

Scheme 53

Scheme 54

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (TAILLIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the taillight illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note TAILLIGHT Taillight ON / OFF - OK: Taillight illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT REAR COMBINATION LIGHT ASSEMBLY (TAILLIGHT) (Scheme 52): Identifying Rear Combination Light Connector Terminals Remove the rear combination light. Apply battery voltage to the rear combination light connector and check that the taillight illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 4 Taillight illuminates NG: REPLACE REAR COMBINATION LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - BATTERY) Disconnect the 6L junction block connector. (Scheme 53): Identifying 6L Junction Block Connector Terminal Measure the resistance of the wire harness side connector. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition 6L-1 (TAIL) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the R6*1 or R7*2 light connector. HINT: *1: LH *2: RH Disconnect the L24 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition R6-1 -L24-1 (TIL1) Below 1 ohms R6-4 - Body ground Below 1 ohms R6-1 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition R7-1 - L24-1 (TIL1) Below 1 ohms R7-4 - Body ground Below 1 ohms R7-1 - Body ground 10 kohms or higher (Scheme 54): Identifying Rear Combination Light And Luggage Room Junction Block ECU Connector Terminals NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the brake pedal signal is received from the luggage room junction block ECU, the stop light illuminates.

Stop Light - Wiring Diagram. Scheme 55

Scheme 56

Scheme 57

Scheme 58

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (STOP LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the stop light illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note STOP LIGHT Stop light ON / OFF - OK: stop light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT REAR COMBINATION LIGHT ASSEMBLY (STOP LIGHT) (Scheme 56): Identifying Rear Combination Light Connector Terminals Remove the rear combination light. Apply battery voltage to the rear combination light connector and check that the stop light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 3 Battery positive (-) --> Terminal 4 Stop light illuminates NG: REPLACE REAR COMBINATION LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - BATTERY AND BODY GROUND) Disconnect the 6L junction block connector. (Scheme 57): Identifying 6L Junction Block Connector Terminal Measure the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition 6L-1 (STOP1) - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the R6*1 or R7*2 light connector. HINT: *1: LH *2: RH Disconnect the L23 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition R6-3 - L23-8 (STP1) Below 1 ohms R6-4 - Body ground Below 1 ohms R6-3 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition R7-3 - L23-7 (STP1) Below 1 ohms R7-4 - Body ground Below 1 ohms R7-3 - Body ground 10 kohms or higher (Scheme 58): Identifying Rear Combination Light And Luggage Room Junction Block ECU Connector Terminals NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the PNP switch R position signal is received from the luggage room junction block ECU, the backup light illuminates.

Back-Up Light - Wiring Diagram. Scheme 59

Scheme 60

Scheme 61

Scheme 62

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (BACK-UP LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the back-up light illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note BACK-UP Back-up light ON / OFF - OK: Back-up light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT BACK-UP LIGHT ASSEMBLY (Scheme 60): Identifying Back-Up Light Connector Terminals Remove the back-up light. Apply battery voltage to the back-up light connector and check that the back-up light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Back-up light illuminates NG: REPLACE BACK-UP LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - BATTERY AND BODY GROUND) Disconnect the 6L junction block connector. (Scheme 61): Identifying 6L Junction Block Connector Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition 6L-1 (BCK1) - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the B8*1 or B9*2 light connector. HINT: *1: LH *2: RH Disconnect the L22 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition B8-2 - L22-13 (BCK1) Below 1 ohms B8-1 - Body ground Below 1 ohms B8-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition B9-2 - L22-13 (BCK1) Below 1 ohms B9-1 - Body ground Below 1 ohms B9-2 - Body ground 10 kohms or higher (Scheme 62): Identifying Back-Up Light And Luggage Room Junction Block ECU Connector Terminals NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit detects the state of the turn signal switch (combination switch) switch and sends it to the driver side junction block ECU.

The driver door ECU and passenger door ECU detect the condition of the door courtesy switch and send a signal to each ECU via the multiplex communication circuit.

Door Courtesy Light Switch - Wiring Diagram. Scheme 63

Scheme 64

Scheme 65

Scheme 66

1. READ VALUE OF INTELLIGENT TESTER (DOOR COURTESY SWITCH) Check the DATA LIST for proper functioning of the door courtesy switch. Driver door ECU DATA LIST - DRIVER DOOR ECU Item Measurement Item / Display (Range) Normal Condition Diagnostic Note COURTSY SW Courtesy switch / ON or OFF ON: Door is open OFF: Door is closed - OK: ON (door is open) appears on the screen. Passenger door ECU DATA LIST - PASSENGER DOOR ECU Item Measurement Item / Display (Range) Normal Condition Diagnostic Note COURTSY SW Courtesy switch / ON or OFF ON: Door is open OFF: Door is closed - OK: ON (door is open) appears on the screen. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (Scheme 64): Inspecting Front Door Courtesy Light Switch Assembly Remove the courtesy light switch. Measure the resistance of the switch. Standard resistance RESISTANCE SPECIFICATION Tester Connection Switch Condition Specified Condition 1 - Body ground Not pushed (ON) Below 1 ohms 1 - Body ground Pushed (OFF) 10 kohms or higher NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - SWITCH) Check the wire harness between the driver door ECU and door courtesy light switch LH. Disconnect the D17 ECU connector. Disconnect the D8 switch connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition D17-27 (CTY) 8-1 Below 1 ohms D17-27 (CTY) - Body ground 10 kohms or higher (Scheme 65): Identifying Driver Door ECU And Front Door Courtesy Light Connector Terminals Check the wire harness between the passenger door ECU and door courtesy light switch RH. (Scheme 66): Identifying Passenger Door ECU And Front Door Courtesy Light Connector Terminals Disconnect the P9 ECU connector. Disconnect the D9 switch connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition P9-27 (CTY) - D9-1 Below 1 ohms P9-27 (CTY) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The door courtesy light illuminates when the door is opened and turns off when closed.

Front Door Courtesy Light - Wiring Diagram. Scheme 67

Scheme 68

Scheme 69

Scheme 70

1. INSPECT FRONT COURTESY LIGHT ASSEMBLY (Scheme 68): Identifying Front Door Courtesy Light Connector Terminals Remove the door courtesy light. Apply battery voltage to the door courtesy light connector and check that the door courtesy light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 2 Door courtesy light illuminates NG: FRONT COURTESY LIGHT ASSEMBLY OK: Go to Next step
2. CHECK WIRE HARNESS (ECU - LIGHT) Check the wire harness between the driver door ECU and door courtesy light LH. Disconnect the D17 ECU connector. Disconnect the D6 light connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Measurement Condition Specified Condition D17-18 (CYL) - D6-2 Below 1 ohms D17-7 (CYLB) - D6-1 Below 1 ohms D17-18 (CYL) - Body ground 10 kohms or higher D17-7 (CYLB) - Body ground 10 kohms or higher (Scheme 69): Identifying Driver Door ECU And Front Door Courtesy Light Connector Terminals Check the wire harness between the passenger door ECU and door courtesy light RH. (Scheme 70): Identifying Passenger Door ECU And Front Door Courtesy Light Connector Terminals Disconnect the P9 ECU connector. Disconnect the D7 light connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Measurement Condition Specified Condition P9-18 (CYL) - D7-2 Below 1 ohms P9-7 (CYLB) - D7-1 Below 1 ohms P9-18 (CYL) - Body ground 10 kohms or higher P9-7 (CYLB) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the courtesy switch signal is received from the door ECU or passenger side junction block ECU, the map light, vanity light, scuff plate light, step light and key cylinder light illuminate.

Room Light - Wiring Diagram. Scheme 71

Scheme 72

Scheme 73

Scheme 74

Scheme 75

Scheme 76

Scheme 77

Scheme 78

Scheme 79

Scheme 80

Scheme 81

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (ROOM LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the room light illuminates. Passenger side junction block ECU ACTIVE TEST DETAIL - PASSENGER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note F ROOM LIGHT Room light ON / OFF - OK: Room light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. CHECK STEP LIGHT Check that the step light illuminates. OK: Step light illuminates. NG: Go to step 9 OK: Go to Next step
3. CHECK VANITY LIGHT Check that the vanity light illuminates. OK: Vanity light illuminates. NG: Go to step 11 OK: Go to Next step
4. CHECK MAP LIGHT Check that the map light illuminates. OK: Map light illuminates. NG: Go to step 13 OK: Go to Next step
5. CHECK IGNITION KEY CYLINDER LIGHT Check that the ignition key cylinder light illuminates. OK: Ignition key cylinder light illuminates. NG: Go to step 15 OK: Go to Next step
6. CHECK SCUFF PLATE LIGHT Check that the scuff plate light illuminates. OK: Scuff plate light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
7. INSPECT SCUFF PLATE LIGHT Remove the scuff plate light. (Scheme 72): Identifying Scuff Plate Light Connector Terminals Apply battery voltage to the scuff light connector and check that the scuff plate light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Scuff plate light illuminates NG: REPLACE SCUFF PLATE LIGHT OK: Go to Next step
8. CHECK WIRE HARNESS (SCUFF PANEL LIGHT - ECU AND BATTERY) Disconnect the S11*1 or S12*2 light connector. HINT: *1: LH *2: RH Disconnect the P4 ECU connector. Measure the voltage of the wire harness side connectors. Standard voltage: LH VOLTAGE SPECIFICATION Tester Connection Specified Condition S11-2 - Body ground 10 to 14 V RH VOLTAGE SPECIFICATION Tester Connection Specified Condition S12-2 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. (Scheme 73): Identifying Scuff Plate Light And Passenger Side Junction Block ECU Connector Terminals Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition S11-1 - P4-9(ILE) Below 1 ohms S11-1 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition S12-1 - P4-9 (ILE) Below 1 ohms S12-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
9. INSPECT STEP LIGHT Remove the step light. Apply battery voltage to the step light connector and check that the step light illuminates. (Scheme 74): Identifying Step Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Step light illuminates NG: REPLACE STEP LIGHT ASSEMBLY OK: Go to Next step
10. CHECK WIRE HARNESS (STEP LIGHT - ECU AND BATTERY) Disconnect the F11*1 or F12*2 light connector. HINT: *1: LH *2: RH Disconnect the P4 ECU connector. Measure the voltage of the wire harness side connectors. Standard voltage: LH VOLTAGE SPECIFICATION Tester Connection Specified Condition F11 - 2 - Body ground 10 to 14 V RH VOLTAGE SPECIFICATION Tester Connection Specified Condition F12-2 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. (Scheme 75): Identifying Step Light And Passenger Side Junction Block ECU Connector Terminals Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition F11-1 - P4-16(FSPT) Below 1 ohms F11-1 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition F12-1 - P4-16 (FSPT) Below 1 ohms F12-1 -Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
11. INSPECT VANITY LIGHT ASSEMBLY Remove the vanity light. Apply battery voltage to the vanity light connector and check that the vanity light illuminates. (Scheme 76): Identifying Vanity Light Connector Terminals OK MEASUREMENT CONDITION AND SWITCH CONDITION Measurement Condition Switch Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 2 ON Vanity light illuminates NG: REPLACE VANITY LIGHT ASSEMBLY OK: Go to Next step
12. CHECK WIRE HARNESS (VANITY LIGHT - BATTERY AND BODY GROUND) Disconnect the V9*1 or V10*2 light connector. HINT: *1: LH *2: RH Measure the voltage of the wire harness side connectors. Standard voltage: LH VOLTAGE SPECIFICATION Tester Connection Specified Condition V9-2 - Body ground 10 to 14 V RH VOLTAGE SPECIFICATION Tester Connection Specified Condition V10-2 - Body ground 10 to 14 V (Scheme 77): Identifying Vanity Light Connector Terminals Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition V9-1 - Body ground Below 1 ohms RH RESISTANCE SPECIFICATION Tester Connection Specified Condition V10-1 - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
13. INSPECT MAP LIGHT ASSEMBLY Remove the map light. Apply battery voltage to the map light connector and check that the map light illuminates. (Scheme 78): Identifying Map Light Connector Terminals OK MEASUREMENT CONDITION AND SWITCH CONDITION Measurement Condition Switch Condition Specified Condition Battery positive (+) --> Terminal 1 (B) Battery negative (-) --> Terminal 2 (E) Map Map light illuminates Battery positive (+) --> Terminal 1 (B) Battery negative (-) --> Terminal 3 (CTY) Door Map light illuminates NG: REPLACE MAP LIGHT ASSEMBLY OK: Go to Next step
14. CHECK WIRE HARNESS (MAP LIGHT - ECU, BATTERY AND BODY GROUND) (Scheme 79): Identifying Map Light And Passenger Side Junction Block ECU Connector Terminals Disconnect the P12 light connector. Disconnect the P4 ECU connector. Measure the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition P12-1 (B) - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition P12-3 (CTY) - P4-9 (ILE) Below 1 ohms P12-2 (E) - Body ground Below 1 ohms P12-3 (CTY) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
15. INSPECT KEY CYLINDER LIGHT ASSEMBLY Remove the key cylinder light. Apply battery voltage to the key cylinder light connector and check that the key cylinder light illuminates. (Scheme 80): Identifying Key Cylinder Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 2 Key cylinder light illuminates NG: REPLACE KEY CYLINDER LIGHT ASSEMBLY OK: Go to Next step
16. CHECK WIRE HARNESS (KEY CYLINDER LIGHT - ECU, BATTERY AND BODY GROUND) (Scheme 81): Identifying Key Cylinder Light And Passenger Side Junction Block ECU Connector Terminals Disconnect the 117 light connector. Disconnect the P4 ECU connector. Measure the voltage of the wire harness side connectors. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition 117-2 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition 117-1 - P4-9 (ILE) Below 1 ohms 117-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the courtesy signal is received from the door ECU, the driver side junction block illuminates the buckle light on the opened door side.

Buckle Switch - Wiring Diagram. Scheme 82

Scheme 83

Scheme 84

Scheme 85

Scheme 86

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (BUCKLE LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the buckle switch light illuminates. Driver side junction block ECU ACTIVE TEST DETAIL - DRIVER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note D BUCKLE LIGHT Driver side buckle light ON / OFF - OK: Driver side buckle light illuminates Passenger side junction block ECU ACTIVE TEST DETAIL - PASSENGER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note P BUCKLE LIGHT Passenger side buckle light ON / OFF - OK: Passenger side buckle light illuminates OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT FRONT SEAT INNER BELT ASSEMBLY Remove the driver side inner belt. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Battery positive (+) --> Terminal 4 Battery negative (-) --> Terminal 2 Below 1 ohms (Scheme 83): Identifying Driver Side Inner Belt Connector Terminals Remove the passenger side inner belt. (Scheme 84): Identifying Passenger Side Inner Belt Connector Terminals Measure the resistance of the switch. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition Tester positive (+) --> Terminal 6 Tester negative (-) --> Terminal 3 Below 1 ohms NG: REPLACE FRONT SEAT INNER BELT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS INNER BELT LH - DRIVER SIDE JUNCTION BLOCK ECU AND BODY GROUND (Scheme 85): Identifying Front Seat Inner Belt And Driver Side Junction Block ECU Connector Terminals Disconnect the B10 belt connector. Disconnect the D3 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition B10-1 - D3-8(DBKL) Below 1 ohms B10-2 - D3-10(DBIL) Below 1 ohms D10-3 - Body ground Below 1 ohms D10-4 - Body ground Below 1 ohms D10-1 - Body ground 10 kohms or higher D10-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS INNER BELT RH - PASSENGER SIDE JUNCTION BLOCK ECU AND BODY GROUND (Scheme 86): Identifying Front Seat Inner Belt And Driver Side Junction Block ECU Connector Terminals Disconnect the B11 belt connector. Disconnect the P5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition B11-3-P5-2(PBIL) Below 1 ohms D11-6 - Body ground Below 1 ohms D11-3 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The luggage door courtesy switch illuminates when the luggage door is opened and turns off when the luggage door is closed.

Luggage Room Light - Wiring Diagram. Scheme 87

Scheme 88

Scheme 89

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (LUGGAGE ROOM LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and check that the luggage room light illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note LUGG LIGHT Luggage room light ON / OFF - OK: Luggage room light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT NO. 1 LUGGAGE ROOM LIGHT ASSEMBLY (Scheme 88): Identifying Luggage Room Light Connector Terminals Remove the luggage room light. Apply battery voltage to the luggage room and check that the luggage room light illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Luggage compartment light illuminates NG: REPLACE NO. 1 LUGGAGE ROOM LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (LIGHT - ECU AND BATTERY) (Scheme 89): Identifying Luggage Room Light And Luggage Room Junction Block ECU Connector Terminals Disconnect the L20*1 or L21*2 light connector. Disconnect the L22*1 or L24*2 ECU connector. HINT: *1: LH *2: RH Measure the voltage of the wire harness side connectors. Standard voltage: LH VOLTAGE SPECIFICATION Tester Connection Specified Condition L20-1 - Body ground 10 to 14 V RH VOLTAGE SPECIFICATION Tester Connection Specified Condition L20-1 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition L20-2 - L22-14 (LGCY) Below 1 ohms L20-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition L21-2 - L22-22 (LGCY) Below 1 ohms L21-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The front light ECU receives turn signal switch information from the combination switch, and illuminates the clearance light.

Clearance Light - Wiring Diagram. Scheme 90

Scheme 91

Scheme 92

Scheme 93

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (CLEARANCE LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the clearance light illuminates. Front light ECU (Front controller) ACTIVE TEST DETAIL - FRONT LIGHT ECU (FRONT CONTROLLER) Item Test Details Diagnostic Note CLEARANCE LIGHT Clearance light ON / OFF - OK: Clearance light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT CLEARANCE LIGHT ASSEMBLY Remove the clearance light. Apply battery to the clearance light connector and check that the clearance light illuminates. (Scheme 91): Identifying Clearance Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Clearance light illuminates. NG: REPLACE CLEARANCE LIGHT ASSEMBLY OK: Go to Next step
3. INSPECT RELAY ASSEMBLY (Marking: CRA) Remove the CRA relay from the engine room No. 2 relay block. (Scheme 92): Identifying CRA Relay Connector Terminals Measure the resistance of the relay. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (when battery voltage is applied to terminals 1 and 2) NG: REPLACE RELAY OK: Go to Next step
4. CHECK WIRE HARNESS (ECU - BODY GROUND) Remove the front light ECU from the engine room No. 2 relay block. (Scheme 93): Identifying Front Light ECU Connector Terminals Using a service wire, connect the front light ECU terminal 15 (TAIL-RLY) of the engine room No. 2 relay block on the wire harness side and body ground. Check that the clearance light illuminates. OK: Clearance light illuminates. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the brake pedal signal is received from the luggage room junction block ECU, the stop light illuminates.

High Mounted Stop Light - Wiring Diagram. Scheme 94

Scheme 95

Scheme 96

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (CENTER STOP LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the center stop light illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note H-M STOP LIGHT High mounted stop light ON / OFF - OK: Center stop light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT CENTER STOP LIGHT ASSEMBLY Remove the center stop light. Apply battery voltage to the center stop light connector and check that the center stop light illuminates. (Scheme 95): Identifying Center Stop Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 2 Center stop light illuminates. NG: REPLACE CENTER STOP LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) (Scheme 96): Identifying Center Stop Light And Luggage Room Junction Block ECU Connector Terminals Disconnect the H18 light connector. Disconnect the L23 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition H18-1 - L23-6 (STP3) Below 1 ohms H18-2 - Body ground Below 1 ohms H18-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the light switch TAIL signal is received from the luggage room junction block ECU, the license plate light illuminates.

License Plate Light - Wiring Diagram. Scheme 97

Scheme 98

Scheme 99

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (LICENSE PLATE LIGHT) Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the license plate light illuminates. Luggage room junction block ECU ACTIVE TEST DETAIL - LUGGAGE ROOM JUNCTION BLOCK ECU Item Test Details Diagnostic Note LICENSE LIGHT License plate light ON / OFF - OK: License plate light illuminates. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT LICENSE PLATE LIGHT ASSEMBLY Remove the license plate light. Apply battery voltage to the license plate light connector and check that the license plate light illuminates. (Scheme 98): Identifying License Plate Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 License plate light illuminates NG: REPLACE LICENSE PLATE LIGHT ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (LIGHT - ECU AND BATTERY) (Scheme 99): Identifying License Plate Light And Luggage Room Junction Block ECU Connector Terminals Disconnect the L3 light connector. Disconnect the L22 ECU connector. Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition L3-2 - Body ground 10 to 14 V Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition L3-1 - L22-10 (LCE1) Below 1 ohms L3-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The front light ECU receives the taillight switch information from the combination switch, and illuminates the front side marker light.

Front Side Marker Light - Wiring Diagram. Scheme 100

Scheme 101

Scheme 102

Scheme 103

1. INSPECT FRONT SIDE MARKER LIGHT ASSEMBLY Remove the front side marker light. Apply battery voltage to the front side marker light connector and check that the front side marker light. (Scheme 101): Identifying Front Side Marker Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Front side marker light illuminates NG: REPLACE FRONT SIDE MARKER LIGHT ASSEMBLY OK: Go to Next step
2. INSPECT RELAY (Marking: CRA) Remove the CRA relay from the engine room No. 2 relay block. (Scheme 102): Identifying CRA Relay Connector Terminals Measure the resistance of the relay. OK RESISTANCE SPECIFICATION Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1ohms (when battery voltage is applied to terminals 1 and 2) NG: REPLACE RELAY OK: Go to Next step
3. CHECK WIRE HARNESS (ECU - BODY GROUND) Remove the front light ECU from the relay block. (Scheme 103): Identifying Front Light ECU Terminal Using a service wire, connect the front light ECU terminal 15 (TAIL-RLY) of the engine room No. 2 relay block on the wire harness side and body ground. Check that the front side marker light illuminates. OK: Front side marker light illuminates. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The luggage room junction block ECU receives taillight switch information from the combination switch, and illuminates the rear side marker light.

Rear Side Marker Light - Wiring Diagram. Scheme 104

Scheme 105

Scheme 106

Scheme 107

1. INSPECT REAR SIDE MARKER LIGHT ASSEMBLY Remove the rear side marker light. Apply battery voltage to the rear side marker light connector and check that the rear side marker illuminates. (Scheme 105): Identifying Rear Side Marker Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Rear side marker light illuminates NG: REPLACE REAR SIDE MARKER LIGHT ASSEMBLY OK: Go to Next step
2. CHECK WIRE HARNESS (ECU - BATTERY) Disconnect the 6L junction block connector. (Scheme 106): Identifying 6L Junction Block Connector Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Specified Condition 6L-1 (TAIL2) - Body ground 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
3. CHECK WIRE HARNESS (LIGHT - ECU AND BODY GROUND) Disconnect the R8*1 or R9*2 light connector. HINT: *1: LH *2: RH Disconnect the L23 ECU connector. Measure the resistance of the wire harness side connectors. (Scheme 107): Identifying Rear Side Marker Light And Luggage Room Junction Block ECU Connector Terminals Standard resistance: LH RESISTANCE SPECIFICATION Tester Connection Specified Condition R8-2 - L23-2 (TIL2) Below 1 ohms R8-1 - Body ground Below 1 ohms R8-2 - Body ground 10 kohms or higher RH RESISTANCE SPECIFICATION Tester Connection Specified Condition R9-2 - L23-1 (TIL2) Below 1 ohms R9-1 - Body ground Below 1 ohms R9-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

When the combination light switch signal is sends from the front light ECU, the driver side junction block ECU turns on switch illumination and combination meter illumination.

Audio Door Control Switch - Wiring Diagram. Scheme 108

Scheme 109

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Scheme 114

Scheme 115

Scheme 116

Scheme 117

Scheme 118

Scheme 119

Scheme 120

Scheme 121

Scheme 122

Scheme 123

Scheme 124

Scheme 125

Scheme 126

Scheme 127

Scheme 128

Scheme 129

Scheme 130

Scheme 131

Scheme 132

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that each light illuminates. Driver side junction block ECU ACTIVE TEST DETAIL - DRIVER SIDE JUNCTION BLOCK ECU Item Test Details Diagnostic Note ILLUMI OUTPUT Illumination entry ON / OFF - OK: Illumination entry turns on. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. CHECK CIGARETTE LIGHTER ASSEMBLY Check that the cigarette lighter illumination turns on. OK: Illumination turns on. NG: Go to step 15 OK: Go to Next step
3. CHECK OUTER MIRROR SWITCH ASSEMBLY Check that the outer mirror switch illumination turns on. OK: Illumination turns on. NG: Go to step 17 OK: Go to Next step
4. CHECK PATTERN SELECT SWITCH ASSEMBLY Check that the pattern select switch illumination turns on. OK: Illumination turns on. NG: Go to step 19 OK: Go to Next step
5. CHECK RADIO RECEIVER ASSEMBLY Check that the radio receiver illumination turns on. OK: illumination turns on. NG: Go to step 21 OK: Go to Next step
6. CHECK GLOVE BOX LIGHT ASSEMBLY Check that the glove box light turns on. OK: Illumination turns on. NG: Go to step 23 OK: Go to Next step
7. CHECK VSC OFF SWITCH Check that the VSC OFF switch illumination turns on. OK: Illumination turns on. NG: Go to step 27 OK: Go to Next step
8. CHECK A/C CONTROL ASSEMBLY Check that the A/C control illumination turns on. OK: Illumination turns on. NG: Go to step 29 OK: Go to Next step
9. CHECK SHIFT POSITION INDICATOR Check that the shift position indicator illumination turns on. OK: Illumination turns on. NG: Go to step 31 OK: Go to Next step
10. CHECK AUDIO DOOR CONTROL SWITCH Check that the audio door control switch illumination turns on. OK: Illumination turns on. NG: Go to step 33 OK: Go to Next step
11. CHECK SEAT HEATER SWITCH Check that the seat heater switch illumination turns on. OK: Illumination turns on. NG: Go to step 35 OK: Go to Next step
12. CHECK MULTI-DISPLAY Check that the multi-display illumination turns on. OK: Illumination turns on. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
13. INSPECT MULTI-DISPLAY Remove the multi-display. Apply battery voltage to the multi-display connector and check that the multi-display illuminates. (Scheme 109): Identifying Multi-Display Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 11 Multi-display illuminates NG: REPLACE MULTI-DISPLAY JUNCTION BLOCK OK: Go to Next step
14. CHECK WIRE HARNESS (MULTI-DISPLAY - ECU AND BODY GROUND) (Scheme 110): Identifying Driver Side Junction Block ECU And Multi-Display Connector Terminals Disconnect the M5 multi-display connector. Disconnect the 2F junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition M5-1 - 2F-10(PANEL2) Below 1 ohms M5-11 - Body ground Below 1 ohms M5-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
15. INSPECT CIGARETTE LIGHTER ASSEMBLY (Scheme 111): Identifying Cigarette Lighter Connector Terminals Remove the cigarette lighter. Apply battery voltage to the multi-display connector and check that the cigarette lighter illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 3 Battery negative (-) --> Terminal 1 Cigarette lighter illuminates NG: REPLACE CIGARETTE LIGHTER ASSEMBLY OK: Go to Next step
16. CHECK WIRE HARNESS (LIGHTER - ECU) (Scheme 112): Identifying Driver Side Junction Block ECU And Cigarette Lighter Connector Terminals Disconnect the C7 lighter connector. Disconnect the 2F junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition C7-7 - D5-6 (TR1) Below 1 ohms C7-3 - 2F-10 (PANEL2) Below 1 ohms C7-7 - Body ground 10 kohms or higher C7-3 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
17. INSPECT OUTER MIRROR SWITCH ASSEMBLY Remove the outer mirror switch. Apply battery voltage to the outer mirror switch connector and check that the outer mirror switch illuminates. OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 5 Battery negative (-) --> Terminal 6 Outer mirror switch illuminates (Scheme 113): Identifying Outer Mirror Switch Connector Terminals NG: REPLACE OUTER MIRROR SWITCH ASSEMBLY OK: Go to Next step
18. CHECK WIRE HARNESS (SWITCH - ECU) (Scheme 114): Identifying Driver Side Junction Block ECU And Outer Mirror Switch Connector Terminals Disconnect the R4 switch connector. Disconnect the 2E junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition R4-5 - 2E-15 (PANEL2) Below 1 ohms R4-6 - D5-7 (TR2) Below 1 ohms R4-5 - Body ground 10 kohms or higher R4-6 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
19. INSPECT PATTERN SELECT SWITCH ASSEMBLY Remove the pattern select switch. Apply battery voltage to the pattern select switch connector and check that the pattern select switch illuminates. (Scheme 115): Identifying Pattern Select Switch Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 4 Pattern select switch illuminates NG: REPLACE PATTERN SELECT SWITCH ASSEMBLY OK: Go to Next step
20. CHECK WIRE HARNESS (SWITCH - ECU) (Scheme 116): Identifying Driver Side Junction Block ECU And Pattern Select Switch Connector Terminals Disconnect the E11 switch connector. Disconnect the 2E junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition E11-2 - 2E-7 (PANEL2) Below 1 ohms E11-4 - D5-18 (TR3) Below 1 ohms E11-2 - Body ground 10 kohms or higher E11-4 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
21. INSPECT RADIO RECEIVER ASSEMBLY Remove the radio receiver. Apply battery voltage to the radio receiver connector and check that the radio receiver illuminates. (Scheme 117): Identifying Radio Receiver Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 14 Radio receiver illuminates NG: REPLACE RADIO RECEIVER ASSEMBLY OK: Go to Next step
22. CHECK WIRE HARNESS (RECEIVER - ECU) (Scheme 118): Identifying Driver Side Junction Block ECU And Radio Receiver Connector Terminals Disconnect the R3 receiver connector. Disconnect the 2E junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition R3-12 - D5-13(TR+) Below 1 ohms R3-2 - 2E-5 (PANEL2) Below 1 ohms R3-12 - Body ground 10 kohms or higher R3-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
23. INSPECT GLOVE BOX LIGHT ASSEMBLY Remove the glove box light. Apply battery voltage to the glove box light connector and check that the glove box light illuminates. (Scheme 119): Identifying Glove Box Light Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 1 Battery negative (-) --> Terminal 2 Glove box light illuminates NG: REPLACE GLOVE BOX LIGHT ASSEMBLY OK: Go to Next step
24. INSPECT GLOVE BOX LIGHT SWITCH Remove the glove box light switch. (Scheme 120): Identifying Glove Box Light Switch Connector Terminals Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition 1 - 2 Glove box light switch ON Below 1 ohms 1 - 2 Glove box light switch OFF 10 kohms or higher NG: REPLACE GLOVE BOX LIGHT SWITCH OK: Go to Next step
25. CHECK WIRE HARNESS (GLOVE BOX LIGHT - ECU) (Scheme 121): Identifying Driver Side Junction Block ECU And Glove Box Light Connector Terminals Disconnect the G4 light connector. Disconnect the G5 switch connector. Disconnect the 2F junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition G4-1 - 2F-10(PANEL2) Below 1 ohms G4-2 - G5-1 Below 1 ohms G4-1 - Body ground 10 kohms or higher G4-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
26. CHECK WIRE HARNESS (GLOVE SWITCH - BOX LIGHT AND BODY GROUND) (Scheme 122): Identifying Glove Box Light And Glove Box Light Switch Connector Terminals Disconnect the G4 light connector. Disconnect the G5 switch connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition G5-1 - G4-2 Below 1 ohms G5-2 - Body ground Below 1 ohms G5-1 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
27. INSPECT VSC OFF SWITCH ASSEMBLY Remove the VSC OFF switch. Apply battery voltage to the VSC OFF switch connector and check that the VSC off switch illuminates. (Scheme 123): Identifying VSC OFF Switch Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 3 Battery negative (-) --> Terminal 4 VSC off switch illuminates NG: REPLACE VSC OFF SWITCH OK: Go to Next step
28. CHECK WIRE HARNESS (VSC OFF SWITCH - ECU) (Scheme 124): Identifying Driver Side Junction Block ECU And VSC OFF Switch Connector Terminals Disconnect the V7 switch connector. Disconnect the 2F junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition V7-4 - D5-12 (TR+) Below 1 ohms V7-3 - 2F-10 (PANEL2) Below 1 ohms V7-4 - Body ground 10 kohms or higher V7-3 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
29. INSPECT A/C CONTROL ASSEMBLY Remove the A/C control. Apply battery voltage to the A/C control connector and check that the A/C control illuminates. (Scheme 125): Identifying A/C Control Assembly Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal A10-10 Battery negative (-) --> Terminal A9-1 A/C control illuminates NG: REPLACE A/C CONTROL ASSEMBLY OK: Go to Next step
30. CHECK WIRE HARNESS (A/C CONTROL - ECU) (Scheme 126): Identifying Driver Side Junction Block ECU And A/C Control Assembly Connector Terminals Disconnect the A9 and A10 A/C control connector. Disconnect the 2F junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A9-1 - D5-12 (TR+) Below 1 ohms A10-10 - 2F-10(PANEL2) Below 1 ohms A9-1 - Body ground 10 kohms or higher A10-10 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
31. INSPECT SHIFT POSITION INDICATOR Remove the shift position indicator. Apply battery voltage to the shift position indicator connector and check that the shift position indicator illuminates. (Scheme 127): Identifying Shift Position Indicator Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 2 Battery negative (-) --> Terminal 1 Shift position indicator illuminates NG: REPLACE SHIFT POSITION INDICATOR OK: Go to Next step
32. CHECK WIRE HARNESS (SHIFT POSITION INDICATOR - ECU) (Scheme 128): Identifying Driver Side Junction Block ECU And Shift Position Indicator Connector Terminals Disconnect the A13 shift position indicator connector. Disconnect the 2F junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A13-1 - D5-12 (TR+) Below 1 ohms A13-2 - 2F-10 (PANEL2) Below 1 ohms A13-1 - Body ground 10 kohms or higher A13-2 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
33. INSPECT AUDIO DOOR CONTROL SWITCH Remove the audio door control switch. Apply battery voltage to the audio door control switch connector and check that the audio door control switch illuminates. (Scheme 129): Identifying Audio Door Control Switch Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 5 Battery negative (-) --> Terminal 1 Audio door control switch illuminates NG: REPLACE AUDIO DOOR CONTROL SWITCH OK: Go to Next step
34. CHECK WIRE HARNESS (AUDIO DOOR CONTROL SWITCH - ECU) (Scheme 130): Identifying Driver Side Junction Block ECU And Audio Door Control Switch Connector Terminals Disconnect the A25 switch connector. Disconnect the 2F junction block connector. Disconnect the D5 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A25-1 - D5-12 (TR+) Below 1 ohms A25-5 - 2F-10 (PANEL2) Below 1 ohms A25-1 - Body ground 10 kohms or higher A25-5 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
35. INSPECT SEAT HEATER SWITCH Remove the seat heater switch. Apply battery voltage to the seat heater switch connector and check that the seat heater switch illuminates. (Scheme 131): Identifying Seat Heater Switch Connector Terminals OK MEASUREMENT CONDITION AND SPECIFIED CONDITION Measurement Condition Specified Condition Battery positive (+) --> Terminal 7 Battery negative (-) --> Terminal 6 Seat heater switch illuminates NG: REPLACE SEAT HEATER SWITCH OK: Go to Next step
36. CHECK WIRE HARNESS (SEAT HEATER SWITCH - ECU AND BODY GROUND) (Scheme 132): Identifying Driver Side Junction Block ECU And Seat Heater Switch Connector Terminals Disconnect the S3 switch connector. Disconnect the 2F junction block connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition S3-7 - 2F-10 (PANEL1) Below 1 ohms S3-6 - Body ground Below 1 ohms S3-7 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit detects the state of the ignition switch. The AFS ECU receives it from the ignition switch.

Ignition Switch - Wiring Diagram. Scheme 133

Scheme 134

1. CHECK WIRE HARNESS (AFS ECU - BATTERY AND BODY GROUND) Disconnect the A31 ECU connector. Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Switch Condition Specified Condition A31-2 (IG) - Body ground Ignition switch ON 10 to 14 V A31-2 (IG) - Body ground Ignition switch OFF Below 1 V Measure the resistance of the wire harness side connector. (Scheme 134): Identifying AFS ECU Connector Terminals Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A31-1 (E1) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The information of the AFS OFF switch state is sent to the AFS ECU.

AFS OFF Switch - Wiring Diagram. Scheme 135

Scheme 136

Scheme 137

1. CHECK WIRE HARNESS (SWITCH - ECU AND BODY GROUND) (Scheme 136): Identifying AFS OFF Switch And AFS ECU Connector Terminals Disconnect the A32 switch connector. Disconnect the A31 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition A32-3 - A31-4 (MSW) Below 1 ohms A32-4 - Body ground Below 1 ohms A32-3 - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
2. INSPECT AFS OFF SWITCH (Scheme 137): Identifying AFS OFF Switch Connector Terminals Remove the AFS OFF switch. Measure the resistance of the switch. Standard resistance RESISTANCE SPECIFICATION Tester Connection Switch Condition Specified Condition 3 - 4 AFS OFF switch is pushed Below 1 ohms 3 - 4 AFS OFF switch is not pushed 10 kohms or higher NG: REPLACE AFS OFF SWITCH OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The luggage compartment door courtesy switch is built into the luggage compartment door lock.

Luggage Compartment Door Courtesy Switch - Wiring Diagram. Scheme 138

Scheme 139

Scheme 140

Scheme 141

1. READ VALUE OF INTELLIGENT TESTER (LUGGAGE COURTESY SWITCH) Check the DATA LIST for proper functioning of the luggage courtesy switch. Luggage room junction block ECU DATA LIST - LUGGAGE ROOM JUNCTION BLOCK ECU Item Measurement Item / Display (Range) Normal Condition Diagnostic Note LUGG COURTSY Luggage courtesy / ON or OFF ON: Luggage room door is open OFF: Luggage room door is closed - OK: ON (luggage room door is open) appear on the screen. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next step
2. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (Scheme 139): Identifying Luggage Compartment Door Lock Connector Terminals Remove the door lock. Measure the resistance of the door lock. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition 1 - 3 Opened (ON) Below 1 ohms 1 - 3 Closed (OFF) 10 kohms or higher 1 - 4 Opened (ON) Below 1 ohms 1 - 4 Closed (OFF) 10 kohms or higher NG: REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY OK: Go to Next step
3. CHECK WIRE HARNESS (LUGGAGE ROOM JUNCTION BLOCK ECU - DOOR LOCK) (Scheme 140): Identifying Luggage Compartment Door Lock And Luggage Room Junction Block ECU Connector Terminals Disconnect the L22 ECU connector. Disconnect the L19 door lock connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition L22-4 (LCTY) - L19-1 Below 1 ohms L22-4 (LCTY) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to Next step
4. CHECK WIRE HARNESS (DOOR LOCK - SLIDING ROOF CONTROL ECU) (Scheme 141): Identifying Luggage Compartment Door Lock And Sliding Roof Control ECU Connector Terminals Disconnect the L19 door lock connector. Disconnect the S17 ECU connector. Measure the resistance of the wire harness side connectors. Standard resistance RESISTANCE SPECIFICATION Tester Connection Specified Condition S17-26 (LCT) - L19-3 Below 1 ohms S17-25 (LCTE) - L19-4 Below 1 ohms S17-26 (LCT) - Body ground 10 kohms or higher S17-25 (LCTE) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit provides power to operate the combination switch.

Ignition Switch - Wiring Diagram. Scheme 142

Scheme 143

1. CHECK WIRE HARNESS (TURN SIGNAL SWITCH - BATTERY AND BODY GROUND) Disconnect the C11 switch connector. Measure the voltage of the wire harness side connector. Standard voltage VOLTAGE SPECIFICATION Tester Connection Switch Condition Specified Condition C11-2 (IG) - C11-8 (E) Ignition switch ON 10 to 14 V C11-2 (IG) - C11-8 (E) Ignition switch OFF 10 to 14 V C11-1 (B) - C11-8 (E) Always Below 1 V Measure the resistance of the wire harness side connector. Standard resistance (Scheme 143): Identifying Turn Signal Switch Connector Terminals RESISTANCE SPECIFICATION Tester Connection Specified Condition C11-8 (E) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Identifying Headlight Assembly Components (1 Of 2). Scheme 144

Identifying Headlight Assembly Components (2 Of 2). Scheme 145