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Home/Lexus/RX/Lexus RX III (2008-2012)/Repair manual/Exterior Lights/Lighting (Diagnostic Codes & Circuit Tests): Other
Contents Wiring diagrams Section: Exterior Lights All sections

Lighting (Diagnostic Codes & Circuit Tests): Other Lexus RX III

Exterior Lights ~13523 words

PROCEDURE

  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124A is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124A is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124B is not output. NG --> See step 2 OK --> See step 3
  2. CHECK FOR DTC Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Result Result Proceed to DTC B2414 is output A DTC B2415 is output B DTC U0126, DTC U0129 or DTC U0101 is output C Other DTC is not output D D --> See step 7 C --> See step 6 B --> See step 5 A --> See step 4
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  4. GO TO DTC CHART. Refer to «DTC B2414: Steering Position Sensor Malfunction»(ref-400873-S22223506192011051800000)
  5. GO TO DTC CHART. Refer to «DTC B2415: Vehicle Speed Sensor Malfunction»(ref-400873-S24823195432011051800000)
  6. GO TO DTC CHART. Refer to «DTC U0101: Lost Communication with ECM; DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0163: Lost Communication with Navigation Control Module; DTC U0182: Lost Communication with AFS ECU; DTC U1000: Can Communication Failure(Message Registry); DTC U1121: Lost Communication with Driver Seat Module»(ref-400873-S06282909292011051800000)
  7. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124B is not output. NG --> See step 2 OK --> See step 3
  2. CHECK FOR DTC Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Result Result Proceed to DTC B2414 is output A DTC B2415 is output B DTC U0126, DTC U0129 or DTC U0101 is output C Other DTC is not output D D --> See step 7 C --> See step 6 B --> See step 5 A --> See step 4
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  4. GO TO DTC CHART. Refer to «DTC B2414: Steering Position Sensor Malfunction»(ref-400873-S01566233402011051800000)
  5. GO TO DTC CHART. Refer to «DTC B2415: Vehicle Speed Sensor Malfunction»(ref-400873-S40239024652011051800000)
  6. GO TO DTC CHART. Refer to «DTC U0101: Lost Communication with ECM; DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with Steering Effort Control Module; DTC U0142: Lost Communication with Main Body ECU; DTC U0163: Lost Communication with Navigation Control Module; DTC U0182: Lost Communication with AFS ECU; DTC U1000: Can Communication Failure(Message Registry); DTC U1121: Lost Communication with Driver Seat Module»(ref-400873-S00430758402011051800000)
  7. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124C is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124C is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B124D is not output. NG --> See step 2 OK --> See step 5
  2. CHECK HARNESS AND CONNECTOR (AFS ECU - INNER REAR VIEW MIRROR ASSEMBLY) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the T5 inner rear view mirror assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-30 (LH+) - T5-12 (LIN) Always Below 1 ohms T5-12 (LIN) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Inner Rear View Mirror Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Connect an oscilloscope to the T5 inner rear view mirror assembly connector. Check the waveform. OK Tester Connection Tool Setting Condition Specified Condition T5-12 (LIN) - T5-2 (E) 2 V/DIV., 20 ms./DIV. Engine switch on (IG) Correct waveform is as shown TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Inner Rear View Mirror Assembly) NG --> See step 4 OK --> See step 6
  4. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  5. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  6. REPLACE INNER REAR VIEW MIRROR ASSEMBLY. Refer to «COMPONENTS»(ref-400927-S31836155122011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2410 or B2411 is not output. NG --> See step 2 OK --> See step 8
  2. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A53-14 (IGS) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-22 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT ASSEMBLY) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A18 or A26 headlight assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2410) Tester Connection Condition Specified Condition A53-1 (SMBL) - A18-8 (SMBL) Always Below 1 ohms A53-29 (SML) - A18-6 (SML) Always Below 1 ohms A53-23 (SMGL) - A18-7 (SMGL) Always Below 1 ohms A53-1 (SMBL) - Body ground Always 10 kohms or higher A53-29 (SML) - Body ground Always 10 kohms or higher A53-23 (SMGL) - Body ground Always 10 kohms or higher RH SIDE (B2411) Tester Connection Condition Specified Condition A53-2 (SMBR) - A26-8 (SMBR) Always Below 1 ohms A53-10 (SMR) - A26-6 (SMR) Always Below 1 ohms A53-24 (SMGR) - A26-7 (SMGR) Always Below 1 ohms A53-2 (SMBR) - Body ground Always 10 kohms or higher A53-10 (SMR) - Body ground Always 10 kohms or higher A53-24 (SMGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Headlight Assembly LH) *3 Front view of wire harness connector (to Headlight Assembly RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage LH SIDE (B2410) Tester Connection Condition Specified Condition A53-1 (SMBL) - A53-23 (SMGL) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V RH SIDE (B2411) Tester Connection Condition Specified Condition A53-2 (SMBR) - A53-24 (SMGR) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Component with harness connected (AFS ECU (Headlight Swivel ECU Assembly)) NG --> See step 9 OK: Go to next step
  6. INSPECT HEADLIGHT UNIT Remove the headlight unit. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2410) Tester Connection Condition Specified Condition A18-8 (SMBL) - 3 (IG) Always Below 1 ohms A18-6 (SML) - 2 (LIN) Always Below 1 ohms A18-7 (SMGL) - 1 (GND) Always Below 1 ohms A18-8 (SMBL) - Body ground Always 10 kohms or higher A18-6 (SML) - Body ground Always 10 kohms or higher A18-7 (SMGL) - Body ground Always 10 kohms or higher RH SIDE (B2411) Tester Connection Condition Specified Condition A26-8 (SMBR) - 3 (IG) Always Below 1 ohms A26-6 (SMR) - 2 (LIN) Always Below 1 ohms A26-7 (SMGR) - 1 (GND) Always Below 1 ohms A26-8 (SMBR) - Body ground Always 10 kohms or higher A26-6 (SMR) - Body ground Always 10 kohms or higher A26-7 (SMGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Headlight Unit LH) *2 Component without harness connected (Headlight Unit RH) *3 Front view of wire harness connector (to Headlight Swivel Motor LH or RH) NG --> See step 10 OK: Go to next step
  7. REPLACE HEADLIGHT SWIVEL MOTOR (HEADLIGHT REFLECTOR) Temporarily replace the headlight swivel motor (headlight reflector) with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2410 or B2411 is not output. NG --> See step 9 OK --> END
  8. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  9. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  10. REPLACE HEADLIGHT UNIT. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2412 or B2413 is not output. NG --> See step 2 OK --> See step 10
  2. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Start the engine. Enter the following menus: Body Electrical / AFS / Active Test. Check that the swivel motors operate. AFS Tester Display Test Part Control Range Diagnostic Note Drive Swivel Motor RH RIGHT Swivel motor RH right direction rotation ON/OFF ON: Move right OFF: Stop Drive Swivel Motor RH LEFT Swivel motor RH left direction rotation ON/OFF ON: Move left OFF: Stop Drive Swivel Motor LH RIGHT Swivel motor LH right direction rotation ON/OFF ON: Move right OFF: Stop Drive Swivel Motor LH LEFT Swivel motor LH left direction rotation ON/OFF ON: Move left OFF: Stop OK Swivel motors operate normally. NG --> See step 4 OK: Go to next step
  3. REPLACE HEADLIGHT SWIVEL MOTOR (HEADLIGHT REFLECTOR) Temporarily replace the headlight swivel motor (headlight reflector) with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2412 or B2413 is not output. NG --> See step 11 OK --> END
  4. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A53-14 (IGS) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-22 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT ASSEMBLY) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A18 or A26 headlight assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2412) Tester Connection Condition Specified Condition A53-1 (SMBL) - A18-8 (SMBL) Always Below 1 ohms A53-29 (SML) - A18-6 (SML) Always Below 1 ohms A53-23 (SMGL) - A18-7 (SMGL) Always Below 1 ohms A53-1 (SMBL) - Body ground Always 10 kohms or higher A53-29 (SML) - Body ground Always 10 kohms or higher A53-23 (SMGL) - Body ground Always 10 kohms or higher RH SIDE (B2413) Tester Connection Condition Specified Condition A53-2 (SMBR) - A26-8 (SMBR) Always Below 1 ohms A53-10 (SMR) - A26-6 (SMR) Always Below 1 ohms A53-24 (SMGR) - A26-7 (SMGR) Always Below 1 ohms A53-2 (SMBR) - Body ground Always 10 kohms or higher A53-10 (SMR) - Body ground Always 10 kohms or higher A53-24 (SMGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Headlight Assembly LH) *3 Front view of wire harness connector (to Headlight Assembly RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  7. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage LH SIDE (B2412) Tester Connection Condition Specified Condition A53-1 (SMBL) - A53-23 (SMGL) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V RH SIDE (B2413) Tester Connection Condition Specified Condition A53-2 (SMBR) - A53-24 (SMGR) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Component with harness connected (AFS ECU (Headlight Swivel ECU Assembly)) NG --> See step 11 OK: Go to next step
  8. INSPECT HEADLIGHT UNIT Remove the headlight unit. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2412) Tester Connection Condition Specified Condition A18-8 (SMBL) - 3 (IG) Always Below 1 ohms A18-6 (SML) - 2 (LIN) Always Below 1 ohms A18-7 (SMGL) - 1 (GND) Always Below 1 ohms A18-8 (SMBL) - Body ground Always 10 kohms or higher A18-6 (SML) - Body ground Always 10 kohms or higher A18-7 (SMGL) - Body ground Always 10 kohms or higher RH SIDE (B2413) Tester Connection Condition Specified Condition A26-8 (SMBR) - 3 (IG) Always Below 1 ohms A26-6 (SMR) - 2 (LIN) Always Below 1 ohms A26-7 (SMGR) - 1 (GND) Always Below 1 ohms A26-8 (SMBR) - Body ground Always 10 kohms or higher A26-6 (SMR) - Body ground Always 10 kohms or higher A26-7 (SMGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Headlight Unit LH) *2 Component without harness connected (Headlight Unit RH) *3 Front view of wire harness connector (to Headlight Swivel Motor LH or RH) NG --> See step 12 OK: Go to next step
  9. REPLACE HEADLIGHT SWIVEL MOTOR (HEADLIGHT REFLECTOR) Temporarily replace the headlight swivel motor (headlight reflector) with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2412 or B2413 is not output. NG --> See step 11 OK --> END
  10. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  11. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  12. REPLACE HEADLIGHT UNIT. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2414 is not output. NG --> See step 2 OK --> See step 4
  2. REPLACE STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) Temporarily replace the steering angle sensor (spiral cable sub-assembly) with a new or normally functioning one. Refer to «COMPONENTS»(ref-400821-S17645134562011051800000) . NEXT: Go to next step
  3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Recheck for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2414 is not output. NG --> See step 5 OK --> END
  4. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  5. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2414 is not output. NG --> See step 2 OK --> See step 4
  2. REPLACE STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) Temporarily replace the steering angle sensor (spiral cable sub-assembly) with a new or normally functioning one. Refer to «COMPONENTS»(ref-400821-S17645134562011051800000) . NEXT: Go to next step
  3. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Recheck for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2414 is not output. NG --> See step 5 OK --> END
  4. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  5. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2415 is not output. NG --> See step 2 OK --> See step 3
  2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400653-S16813452302011051800000) . OK Vehicle Stability Control System DTCs are not output. NG --> See step 4 OK --> See step 5
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  4. GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400653-S24736953362011051800000)
  5. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2415 is not output. NG --> See step 2 OK --> See step 3
  2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400653-S23107378592011051800000) . OK Vehicle Stability Control System DTCs are not output. NG --> See step 4 OK --> See step 5
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  4. GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400653-S16985797542011051800000)
  5. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2416 is not output. NG --> See step 2 OK --> See step 15
  2. CHECK VEHICLE CONDITION Check the vehicle condition. RESULT Result Proceed to w/o Air Suspension System A w/ Air Suspension System B B --> See step 7 A: Go to next step
  3. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / AFS / Data List. Read the display on the Techstream. AFS Tester Display Measurement Item/Range Normal Condition Height Sens Pw Supply Val Rear height control sensor power supply value / 0 to 6.25 V Approx. 5.0 V OK Normal conditions listed above are displayed. NG --> See step 5 OK: Go to next step
  4. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Connect 3 dry cell batteries (1.5 V) in series. Remove the rear height control sensor sub-assembly RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000) . Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG). Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down. Standard Voltage Tester Connection Condition Specified Condition 2 (SHRR) - 1 (SHG) +45° (High) 4.05 V 0° (Normal) 2.25 V -45° (Low) 0.45 V TEXT IN ILLUSTRATION *1 Component without harness connected (Rear Height Control Sensor Sub-assembly RH) NG --> See step 12 OK --> See step 13
  5. CHECK HARNESS AND CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the R4 rear height control sensor sub-assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-18 (SBR) - R4-3 (SHB) Always Below 1 ohms A53-19 (SHRL) - R4-2 (SHRR) Always Below 1 ohms A53-21 (SGR) - R4-1 (SHG) Always Below 1 ohms A53-18 (SBR) - Body ground Always 10 kohms or higher A53-19 (SHRL) - Body ground Always 10 kohms or higher A53-21 (SGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Rear Height Control Sensor Sub-assembly RH) *2 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Connect 3 dry cell batteries (1.5 V) in series. Remove the rear height control sensor sub-assembly RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000) . Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG). Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down. Standard Voltage Tester Connection Condition Specified Condition 2 (SHRR) - 1 (SHG) +45° (High) 4.05 V 0° (Normal) 2.25 V -45° (Low) 0.45 V TEXT IN ILLUSTRATION *1 Component without harness connected (Rear Height Control Sensor Sub-assembly RH) NG --> See step 12 OK --> See step 13
  7. CHECK FOR DTC (AIR SUSPENSION SYSTEM) Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400816-S24879937562011051800000) . OK DTC "C1712 Front Height Control Sensor LH Circuit Malfunction" and "C1714 Rear Height Control Sensor LH Circuit Malfunction" are not output. NG --> See step 14 OK: Go to next step
  8. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / AFS / Data List. Read the display on the Techstream. AFS Tester Display Measurement Item/Range Normal Condition Height Sens Pw Supply Val Rear height control sensor power supply value / 0 to 6.25 V Approx. 5.0 V OK Normal conditions listed above are displayed. NG --> See step 10 OK: Go to next step
  9. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2416 is not output. NG --> See step 13 OK --> END
  10. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A54 and A55 suspension control ECU connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-17 (SHFL) - A55-23 (SHF2) Always Below 1 ohms A53-18 (SBR) - A55-22 (SHB5) Always Below 1 ohms A53-19 (SHRL) - A54-27 (SHR2) Always Below 1 ohms A53-21 (SGR) - A55-21 (SHG5) Always Below 1 ohms A53-17 (SHFL) - Body ground Always 10 kohms or higher A53-18 (SBR) - Body ground Always 10 kohms or higher A53-19 (SHRL) - Body ground Always 10 kohms or higher A53-21 (SGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Suspension Control ECU) *3 Front view of wire harness connector (to Suspension Control ECU) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  11. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2416 is not output. NG --> See step 13 OK --> END
  12. REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000)
  13. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  14. GO TO AIR SUSPENSION SYSTEM. Refer to «DTC C1711: Front Height Control Sensor RH Circuit Malfunction; DTC C1712: Front Height Control Sensor LH Circuit Malfunction; DTC C1713: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714: Rear Height Control Sensor LH Circuit Malfunction»(ref-400858-S09096950142011051800000)
  15. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2417 or B2418 is not output. NG --> See step 2 OK --> See step 9
  2. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Start the engine. Enter the following menus: Body Electrical / AFS / Active Test. Check that the leveling motors operate. AFS Tester Display Test Part Control Range Diagnostic Note Drive The Leveling Motor UP Leveling motor upward operation ON/OFF ON: Move up OFF: Stop Drive The Leveling Motor DOWN Leveling motor downward operation ON/OFF ON: Move down OFF: Stop OK Headlight leveling motors operate normally. NG --> See step 4 OK: Go to next step
  3. REPLACE HEADLIGHT LEVELING MOTOR Temporarily replace the headlight leveling motor with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2417 or B2418 is not output. NG --> See step 10 OK --> END
  4. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A53-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-22 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT LEVELING MOTOR) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A21 or A29 headlight leveling motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2417) Tester Connection Condition Specified Condition A53-3 (LHT) - A21-1 (LHB1) Always Below 1 ohms A53-27 (LH-) - A21-3 (LHE) Always Below 1 ohms A53-30 (LH+) - A21-2 (LHM+) Always Below 1 ohms A53-3 (LHT) - Body ground Always 10 kohms or higher A53-27 (LH-) - Body ground Always 10 kohms or higher A53-30 (LH+) - Body ground Always 10 kohms or higher RH SIDE (B2418) Tester Connection Condition Specified Condition A53-4 (RHT) - A29-1 (RHB1) Always Below 1 ohms A53-28 (RH-) - A29-3 (RHE) Always Below 1 ohms A53-11 (RH+) - A29-2 (RHM+) Always Below 1 ohms A53-4 (RHT) - Body ground Always 10 kohms or higher A53-28 (RH-) - Body ground Always 10 kohms or higher A53-11 (RH+) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Headlight Leveling Motor LH) *3 Front view of wire harness connector (to Headlight Leveling Motor RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  7. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage LH SIDE (B2417) Tester Connection Condition Specified Condition A53-3 (LHT) - A53-27 (LH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V RH SIDE (B2418) Tester Connection Condition Specified Condition A53-4 (RHT) - A53-28 (RH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Component with harness connected (AFS ECU (Headlight Swivel ECU Assembly)) NG --> See step 10 OK: Go to next step
  8. REPLACE HEADLIGHT LEVELING MOTOR Temporarily replace the headlight leveling motor with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2417 or B2418 is not output. NG --> See step 10 OK --> END
  9. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  10. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B241A is not output. NG --> See step 2 OK --> See step 15
  2. CHECK VEHICLE CONDITION Check the vehicle condition. RESULT Result Proceed to w/o Air Suspension System A w/ Air Suspension System B B --> See step 7 A: Go to next step
  3. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / AFS / Data List. Read the display on the Techstream. AFS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Height Sens Pw Supply Val Rear height control sensor power supply value / 0 to 6.25 V Approx. 5.0 V - Rr Height Sens Signal Val Rear height control sensor signal value / 0 to 5 V Approx. 2.5 V (When the vehicle is level) Value is changed according to vehicle height OK Normal conditions listed above are displayed. NG --> See step 5 OK: Go to next step
  4. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Connect 3 dry cell batteries (1.5 V) in series. Remove the rear height control sensor sub-assembly RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000) . Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG). Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down. Standard Voltage Tester Connection Condition Specified Condition 2 (SHRR) - 1 (SHG) +45° (High) 4.05 V 0° (Normal) 2.25 V -45° (Low) 0.45 V TEXT IN ILLUSTRATION *1 Component without harness connected (Rear Height Control Sensor Sub-assembly RH) NG --> See step 12 OK --> See step 13
  5. CHECK HARNESS AND CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the R4 rear height control sensor sub-assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-18 (SBR) - R4-3 (SHB) Always Below 1 ohms A53-19 (SHRL) - R4-2 (SHRR) Always Below 1 ohms A53-21 (SGR) - R4-1 (SHG) Always Below 1 ohms A53-18 (SBR) - Body ground Always 10 kohms or higher A53-19 (SHRL) - Body ground Always 10 kohms or higher A53-21 (SGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Rear Height Control Sensor Sub-assembly RH) *2 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Connect 3 dry cell batteries (1.5 V) in series. Remove the rear height control sensor sub-assembly RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000) . Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG). Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down. Standard Voltage Tester Connection Condition Specified Condition 2 (SHRR) - 1 (SHG) +45° (High) 4.05 V 0° (Normal) 2.25 V -45° (Low) 0.45 V TEXT IN ILLUSTRATION *1 Component without harness connected (Rear Height Control Sensor Sub-assembly RH) NG --> See step 12 OK --> See step 13
  7. CHECK FOR DTC (AIR SUSPENSION SYSTEM) Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400816-S24879937562011051800000) . OK DTC "C1714 Rear Height Control Sensor LH Circuit Malfunction" is not output. NG --> See step 14 OK: Go to next step
  8. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / AFS / Data List. Read the display on the Techstream. AFS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Height Sens Pw Supply Val Rear height control sensor power supply value / 0 to 6.25 V Approx. 5.0 V - Rr Height Sens Signal Val Rear height control sensor signal value / 0 to 5 V Approx. 2.5 V (When the vehicle is level) Value is changed according to vehicle height OK Normal conditions listed above are displayed. NG --> See step 10 OK: Go to next step
  9. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2416 is not output. NG --> See step 13 OK --> END
  10. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A54 and A55 suspension control ECU connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-18 (SBR) - A55-22 (SHB5) Always Below 1 ohms A53-19 (SHRL) - A54-27 (SHR2) Always Below 1 ohms A53-21 (SGR) - A55-21 (SHG5) Always Below 1 ohms A53-18 (SBR) - Body ground Always 10 kohms or higher A53-19 (SHRL) - Body ground Always 10 kohms or higher A53-21 (SGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Suspension Control ECU) *3 Front view of wire harness connector (to Suspension Control ECU) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  11. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2416 is not output. NG --> See step 13 OK --> END
  12. REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH. Refer to «COMPONENTS»(ref-400664-S29844240722011051800000)
  13. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  14. GO TO AIR SUSPENSION SYSTEM. Refer to «DTC C1711: Front Height Control Sensor RH Circuit Malfunction; DTC C1712: Front Height Control Sensor LH Circuit Malfunction; DTC C1713: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714: Rear Height Control Sensor LH Circuit Malfunction»(ref-400858-S09096950142011051800000)
  15. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B241B is not output. NG --> See step 2 OK --> See step 8
  2. CHECK FOR DTC Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400816-S24879937562011051800000) . OK DTC "C1712/12 Front Height Control Sensor LH Circuit Malfunction" is not output. NG --> See step 9 OK: Go to next step
  3. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Enter the following menus: Body Electrical / AFS / Data List. Read the display on the Techstream. AFS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Height Sens Pw Supply Val Height control sensor power supply value / 0 to 6.25 V Approx. 5.0 V - Fr Height Sens Signal Val Front height control sensor signal value / 0 to 5 V Approx. 2.5 V (When the vehicle is level) Value is changed according to vehicle height OK Normal conditions listed above are displayed. NG --> See step 5 OK: Go to next step
  4. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B241B is not output. NG --> See step 7 OK --> END
  5. CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A55 suspension control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-17 (SHFL) - A55-23 (SHF2) Always Below 1 ohms A53-18 (SBR) - A55-22 (SHB5) Always Below 1 ohms A53-21 (SGR) - A55-21 (SHG5) Always Below 1 ohms A53-17 (SHFL) - Body ground Always 10 kohms or higher A53-18 (SBR) - Body ground Always 10 kohms or higher A53-21 (SGR) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Suspension Control ECU) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. REPLACE SUSPENSION CONTROL ECU Temporarily replace the suspension control ECU with a new or normally functioning one. Refer to «COMPONENTS»(ref-400859-S23155038382011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B241B is not output. NG --> See step 7 OK --> END
  7. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  8. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  9. GO TO AIR SUSPENSION SYSTEM. Refer to «DTC C1711: Front Height Control Sensor RH Circuit Malfunction; DTC C1712: Front Height Control Sensor LH Circuit Malfunction; DTC C1713: Rear Height Control Sensor RH Circuit Malfunction; DTC C1714: Rear Height Control Sensor LH Circuit Malfunction»(ref-400858-S09096950142011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2420 is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2420 is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2424 or B2425 is not output. NG --> See step 2 OK --> See step 7
  2. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A53-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-22 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT LEVELING MOTOR) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A21 or A29 headlight leveling motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2424) Tester Connection Condition Specified Condition A53-3 (LHT) - A21-1 (LHB1) Always Below 1 ohms A53-27 (LH-) - A21-3 (LHE) Always Below 1 ohms A53-30 (LH+) - A21-2 (LHM+) Always Below 1 ohms A53-3 (LHT) - Body ground Always 10 kohms or higher A53-27 (LH-) - Body ground Always 10 kohms or higher A53-30 (LH+) - Body ground Always 10 kohms or higher RH SIDE (B2425) Tester Connection Condition Specified Condition A53-4 (RHT) - A29-1 (RHB1) Always Below 1 ohms A53-28 (RH-) - A29-3 (RHE) Always Below 1 ohms A53-11 (RH+) - A29-2 (RHM+) Always Below 1 ohms A53-4 (RHT) - Body ground Always 10 kohms or higher A53-28 (RH-) - Body ground Always 10 kohms or higher A53-11 (RH+) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Headlight Leveling Motor LH) *3 Front view of wire harness connector (to Headlight Leveling Motor RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage LH SIDE (B2424) Tester Connection Condition Specified Condition A53-3 (LHT) - A53-27 (LH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V RH SIDE (B2425) Tester Connection Condition Specified Condition A53-4 (RHT) - A53-28 (RH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Component with harness connected (AFS ECU (Headlight Swivel ECU Assembly)) NG --> See step 8 OK: Go to next step
  6. REPLACE HEADLIGHT LEVELING MOTOR Temporarily replace the headlight leveling motor with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2424 or B2425 is not output. NG --> See step 8 OK --> END
  7. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  8. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2424 or B2425 is not output. NG --> See step 2 OK --> See step 7
  2. CHECK HARNESS AND CONNECTOR (BATTERY - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A53-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (AFS ECU - BODY GROUND) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-22 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (AFS ECU - HEADLIGHT LEVELING MOTOR) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Disconnect the A21 or A29 headlight leveling motor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance LH SIDE (B2424) Tester Connection Condition Specified Condition A53-3 (LHT) - A21-1 (LHB1) Always Below 1 ohms A53-27 (LH-) - A21-3 (LHE) Always Below 1 ohms A53-30 (LH+) - A21-2 (LHM+) Always Below 1 ohms A53-3 (LHT) - Body ground Always 10 kohms or higher A53-27 (LH-) - Body ground Always 10 kohms or higher A53-30 (LH+) - Body ground Always 10 kohms or higher RH SIDE (B2425) Tester Connection Condition Specified Condition A53-4 (RHT) - A29-1 (RHB1) Always Below 1 ohms A53-28 (RH-) - A29-3 (RHE) Always Below 1 ohms A53-11 (RH+) - A29-2 (RHM+) Always Below 1 ohms A53-4 (RHT) - Body ground Always 10 kohms or higher A53-28 (RH-) - Body ground Always 10 kohms or higher A53-11 (RH+) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 Front view of wire harness connector (to Headlight Leveling Motor LH) *3 Front view of wire harness connector (to Headlight Leveling Motor RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage LH SIDE (B2424) Tester Connection Condition Specified Condition A53-3 (LHT) - A53-27 (LH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V RH SIDE (B2425) Tester Connection Condition Specified Condition A53-4 (RHT) - A53-28 (RH-) Engine switch off Below 1 V Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *1 Component with harness connected (AFS ECU (Headlight Swivel ECU Assembly)) NG --> See step 8 OK: Go to next step
  6. REPLACE HEADLIGHT LEVELING MOTOR Temporarily replace the headlight leveling motor with a new or normally functioning one. Refer to «COMPONENTS»(ref-400664-S16127678662011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2424 or B2425 is not output. NG --> See step 8 OK --> END
  7. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  8. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S19401251672011051800000) . NEXT: Go to next step
  2. RECHECK FOR DTC Using the Techstream, recheck for DTCs. Result Result Proceed to B2450 is not output. A B2450 is output. B HINT: If the AFS ECU (headlight swivel ECU assembly) stores B2450 even though the ECU has been initialized, there may be a malfunction in the AFS ECU (headlight swivel ECU assembly). B --> See step 3 A --> END
  3. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S06640505582011051800000) . NEXT: Go to next step
  2. RECHECK FOR DTC Using the Techstream, recheck for DTCs. Result Result Proceed to B2450 is not output. A B2450 is output. B HINT: If the AFS ECU (headlight swivel ECU assembly) stores B2450 even though the ECU has been initialized, there may be a malfunction in the AFS ECU (headlight swivel ECU assembly). B --> See step 3 A --> END
  3. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Replace the AFS ECU (headlight swivel ECU assembly) with one that has vehicle specifications stored. Refer to «COMPONENTS»(ref-400664-S29285884362011051800000) . NEXT: Go to next step
  2. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S19401251672011051800000) . NEXT --> END
  1. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Replace the AFS ECU (headlight swivel ECU assembly) with one that has vehicle specifications stored. Refer to «COMPONENTS»(ref-400664-S29285884362011051800000) . NEXT: Go to next step
  2. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S06640505582011051800000) . NEXT --> END
  1. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S19401251672011051800000) . HINT: Before initializing, make sure that the vehicle condition is proper for initialization. Be sure to perform the initialization as instructed. NEXT: Go to next step
  2. RECHECK FOR DTC Using the Techstream, recheck for DTCs. Result Result Proceed to B2452 is not output. A B2452 is output. B HINT: If the AFS ECU (headlight swivel ECU assembly) stores B2452 even though the ECU has been initialized as instructed, there may be a malfunction in the AFS ECU (headlight swivel ECU assembly). B --> See step 3 A --> END
  3. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. PERFORM INITIALIZATION Perform initialization of the AFS ECU (headlight swivel ECU assembly). Refer to «INITIALIZATION»(ref-400862-S06640505582011051800000) . HINT: Before initializing, make sure that the vehicle condition is proper for initialization. Be sure to perform the initialization as instructed. NEXT: Go to next step
  2. RECHECK FOR DTC Using the Techstream, recheck for DTCs. Result Result Proceed to B2452 is not output. A B2452 is output. B HINT: If the AFS ECU (headlight swivel ECU assembly) stores B2452 even though the ECU has been initialized as instructed, there may be a malfunction in the AFS ECU (headlight swivel ECU assembly). B --> See step 3 A --> END
  3. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2453 is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTC B2453 is not output. NG --> See step 2 OK --> See step 3
  2. REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY). Refer to «COMPONENTS»(ref-400664-S29285884362011051800000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTCs are not output. NG --> See step 3 OK --> See step 2
  2. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S11887826212011051800000)
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400834-S14071915672011051800000)
  1. CHECK FOR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . Check for DTCs. Refer to «DTC CHECK / CLEAR»(ref-400862-S13993873942011051800000) . OK DTCs are not output. NG --> See step 3 OK --> See step 2
  2. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400834-S34883510432011051800000)
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY Tester Display Measurement Item/Range Normal Condition Dimmer Hi SW Dimmer switch high position signal/ON or OFF ON: Dimmer switch in high or high flash (pass) position OFF: Dimmer switch in low position Passing Light SW Dimmer switch high flash (pass) position signal/ON or OFF ON: Dimmer switch in high flash (pass) position OFF: Dimmer switch not in high flash (pass) position Front Fog Light SW Front fog light switch signal/ON or OFF ON: Front fog light switch on OFF: Front fog light switch off Light Auto SW Light control switch AUTO position signal/ON or OFF ON: Light control switch in AUTO position OFF: Light control switch not in AUTO position Headlight SW Light control switch head position signal/ON or OFF ON: Light control switch in head position OFF: Light control switch not in head position Taillight SW Light control switch tail position signal/ON or OFF ON: Light control switch in tail or head position OFF: Light control switch in neither tail nor head position OK Normal conditions listed above are displayed. NG --> See step 2 OK --> See step 4
  2. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY HINT: Inspect the items that did not change as a result of monitoring the Data List. Remove the headlight dimmer switch assembly. Refer to «COMPONENTS»(ref-400664-S24839064692011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance LIGHT CONTROL SWITCH Tester Connection Switch Condition Specified Condition 12 (EL) - 18 (T) Light control switch off 10 kohms or higher 18 (T) - 19 (A) Light control switch off 10 kohms or higher 19 (A) - 20 (H) Light control switch off 10 kohms or higher 12 (EL) - 18 (T) Light control switch in tail position Below 1 ohms 12 (EL) - 18 (T) Light control switch in head position Below 1 ohms 18 (T) - 20 (H) Light control switch in head position Below 1 ohms 12 (EL) - 19 (A) Light control switch in AUTO position Below 1 ohms DIMMER SWITCH Tester Connection Switch Condition Specified Condition 11 (HU) - 12 (EL) Dimmer switch in low position 10 kohms or higher 11 (HU) - 12 (EL) Dimmer switch in high position Below 1 ohms 12 (EL) - 17 (HF) Dimmer switch in high flash position Below 1 ohms FOG LIGHT SWITCH Tester Connection Switch Condition Specified Condition 3 (LFG) - 4 (BFG) Fog light switch off 10 kohms or higher 3 (LFG) - 4 (BFG) Fog light switch on Below 1 ohms OK Headlight dimmer switch assembly is normal. TEXT IN ILLUSTRATION *1 Component without harness connected (Headlight Dimmer Switch Assembly) NG --> See step 5 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - HEADLIGHT DIMMER SWITCH ASSEMBLY) Disconnect the F39 headlight dimmer switch assembly connector. Disconnect the F13 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F39-4 (BFG) - F13-27 (FFOG) Always Below 1 ohms F39-11 (HU) - F13-5 (HU) Always Below 1 ohms F39-17 (HF) - F13-8 (HF) Always Below 1 ohms F39-18 (T) - F13-30 (TAIL) Always Below 1 ohms F39-19 (A) - F13-28 (A) Always Below 1 ohms F39-20 (H) - F13-29 (HEAD) Always Below 1 ohms F39-4 (BFG) - Body ground Always 10 kohms or higher F39-11 (HU) - Body ground Always 10 kohms or higher F39-17 (HF) - Body ground Always 10 kohms or higher F39-18 (T) - Body ground Always 10 kohms or higher F39-19 (A) - Body ground Always 10 kohms or higher F39-20 (H) - Body ground Always 10 kohms or higher F39-12 (EL) - Body ground Always Below 1 ohms F39-3 (LFG) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Headlight Dimmer Switch Assembly) *2 Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
  4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  5. REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY. Refer to «COMPONENTS»(ref-400664-S24839064692011051800000)
  6. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the headlights come on and that the headlights change from low beams to high beams. MAIN BODY Tester Display Test Part Control Range Head Light Hi High beam headlights ON/OFF OK Headlights come on and change from low beams to high beams. NG --> See step 2 OK --> See step 9
  2. CHECK OPERATION (LOW BEAM HEADLIGHTS) Check the operation of the low beam headlights. OK Low beam headlights operate normally. NG --> See step 10 OK: Go to next step
  3. INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the power distributor (engine room junction block assembly) from the engine room relay block. Refer to «COMPONENTS»(ref-400866-S01406661402011051800000) . Connect a positive (+) lead from the battery to terminal 3A-1. Connect a negative (-) lead from the battery to terminal 3C-5. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 3B-2 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) NG --> See step 7 OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - HEADLIGHT ASSEMBLY) Disconnect the 3B power distributor (engine room junction block assembly) connector. Disconnect the A18 or A26 headlight assembly connector. Measure the resistance according to the value(s) in the table. Standard Resistance Tester Connection Condition Specified Condition 3B-2 - A18-1 Always Below 1 ohms 3B-2 - A26-1 Always Below 1 ohms 3B-2 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Headlight Assembly LH) *3 Front view of wire harness connector (to Headlight Assembly RH) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3C power distributor (engine room junction block assembly) connector. Disconnect the 2F instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table. Standard Resistance Tester Connection Condition Specified Condition 3C-5 - 2F-20 Always Below 1 ohms 3C-5 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-20 - A-22 (DIM) Always Below 1 ohms 2F-20 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 8
  7. REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY). Refer to «COMPONENTS»(ref-400866-S01406661402011051800000)
  8. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  9. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  10. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the daytime running lights operate. MAIN BODY Tester Display Test Part Control Range Daytime Running Light Daytime running lights ON/OFF OK Daytime running lights illuminate. NG --> See step 2 OK --> See step 8
  2. CHECK OPERATION (HIGH BEAM HEADLIGHTS) Check the operation of the high beam headlights. OK High beam headlights operate normally. NG --> See step 6 OK: Go to next step
  3. INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the power distributor (engine room junction block assembly) from the engine room relay block. Refer to «COMPONENTS»(ref-400866-S01406661402011051800000) . Connect a positive (+) lead from the battery to terminal 3A-1. Connect a negative (-) lead from the battery to terminals 3C-3 and 3C-17. Check for pulses according to the value(s) in the table below. Standard Tester Connection Condition Specified Condition 3B-1 - Battery negative Always Pulse generation 3B-5 - Battery negative Always Pulse generation TEXT IN ILLUSTRATION *1 Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) NG --> See step 7 OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3C power distributor (engine room junction block assembly) connector. Disconnect the 2F instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3C-3 - 2F-19 Always Below 1 ohms 2F-19 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-19 - A-25 (DRL) Always Below 1 ohms 2F-19 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 9
  6. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  7. REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY). Refer to «COMPONENTS»(ref-400866-S01406661402011051800000)
  8. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  9. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the relay operates. MAIN BODY Tester Display Test Part Control Range Front Fog Light Relay Front fog light relay ON/OFF OK Front fog light relay operates. (Front fog lights come on.) NG --> See step 2 OK --> See step 4
  2. CHECK OPERATION (TAILLIGHTS) Check the operation of the taillights. OK Taillights operate normally. NG --> See step 5 OK: Go to next step
  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Connect a positive (+) lead from the battery to terminal 2K-1. Connect a negative (-) lead from the battery to terminals A-14 and A-13. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2F-9 - Battery negative Always 11 to 14 V 2F-10 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 6
  4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  5. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  6. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Mirror L or Mirror R / Active Test. Check that the door mirror foot lights operate. MIRROR L Tester Display Test Part Control Range Foot Light Door mirror foot light LH ON/OFF MIRROR R Tester Display Test Part Control Range Foot Light Door mirror foot light RH ON/OFF Result Result Proceed to OK A NG (Door mirror foot light LH does not comes on) B NG (Door mirror foot light RH does not comes on) C C --> See step 3 B --> See step 2 A --> See step 8
  2. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH Remove the outer rear view mirror assembly LH. Refer to «COMPONENTS»(ref-400925-S05386698692011051800000) . Connect a positive (+) lead from the battery to terminal 2 and a negative (-) lead to terminal 12. Check that the outer mirror foot light comes on. OK Door mirror foot light comes on. TEXT IN ILLUSTRATION *1 Component without harness connected (Outer Rear View Mirror Assembly LH) NG --> See step 4 OK --> See step 6
  3. INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH Remove the outer rear view mirror assembly RH. Refer to «COMPONENTS»(ref-400925-S05386698692011051800000) . Connect a positive (+) lead from the battery to terminal 2 and a negative (-) lead to terminal 12. Check that the outer mirror foot light comes on. OK Door mirror foot light comes on. TEXT IN ILLUSTRATION *1 Component without harness connected (Outer Rear View Mirror Assembly RH) NG --> See step 5 OK --> See step 7
  4. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to «COMPONENTS»(ref-400925-S05386698692011051800000)
  5. REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to «COMPONENTS»(ref-400925-S05386698692011051800000)
  6. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (LH). Refer to «COMPONENTS»(ref-400925-S25169514242011051800000)
  7. REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY (RH). Refer to «COMPONENTS»(ref-400925-S25169514242011051800000)
  8. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY Tester Display Measurement Item/Range Normal Condition Parking Brake SW Parking brake switch signal/ON or OFF ON: Parking brake switch on OFF: Parking brake switch off OK Normal conditions listed above are displayed. NG --> See step 2 OK --> See step 5
  2. INSPECT PARKING BRAKE SWITCH ASSEMBLY Remove the parking brake switch assembly. Refer to «COMPONENTS»(ref-400857-S16698887572011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - Switch body Shaft pushed in (OFF) 10 kohms or higher 1 - Switch body Shaft not pushed in (ON) Below 1 ohms NG --> See step 6 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (SWITCH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 2F instrument panel junction block assembly connector. Disconnect the A49 parking brake switch assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A49-1 - 2F-32 Always Below 1 ohms A49-1 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) *2 Front view of wire harness connector (to Parking Brake Switch Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-32 - A-12 (PKB) Always Below 1 ohms 2F-32 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 7
  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  6. REPLACE PARKING BRAKE SWITCH ASSEMBLY. Refer to «COMPONENTS»(ref-400857-S16698887572011051800000)
  7. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the relay operates. MAIN BODY Tester Display Test Part Control Range Taillight Relay Taillight relay ON/OFF OK Taillight relay operates. (Taillights illuminate.) NG --> See step 2 OK --> See step 4
  2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Connect a positive (+) lead from the battery to terminal 2K-1. Connect a negative (-) lead from the battery to terminal A-14. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2F-39 - Battery negative Always 11 to 14 V 2H-5 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 2K instrument panel junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2K-1 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
  4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  5. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  1. CHECK HARNESS AND CONNECTOR (BATTERY - HEADLIGHT LEVELING ECU ASSEMBLY) Disconnect the T5 inner rear view mirror assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition T5-1 (IG) - T5-2 (E) Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Inner Rear View Mirror Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 2
  2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  1. CHECK HARNESS AND CONNECTOR (DLC3 - AFS ECU) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A53-7 (INIT) - F17-8 (LVL) Always Below 1 ohms A53-7 (INIT) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to AFS ECU (Headlight Swivel ECU Assembly)) *2 DLC3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F17-4 (CG) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 DLC3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the relays operate. MAIN BODY Tester Display Test Part Control Range Headlight Relay Headlight relays ON/OFF OK Headlight relays operate. (Low beam headlights illuminate.) NG --> See step 2 OK --> See step 8
  2. INSPECT POWER DISTRIBUTOR ENGINE ROOM JUNCTION BLOCK ASSEMBLY Remove the power distributor (engine room junction block assembly) from the engine room relay block. Refer to «COMPONENTS»(ref-400866-S01406661402011051800000) . Connect a positive (+) lead from the battery to terminal 3A-1 Connect a negative (-) lead from the battery to terminals 3C-13 and 3C-17. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 3B-3 - Battery negative Always 11 to 14 V 3B-4 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) NG --> See step 9 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (BATTERY - POWER DISTRIBUTOR) Disconnect the 3A power distributor (engine room junction block assembly) connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connector Condition Specified Condition 3A-1 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - BODY GROUND) Disconnect the 3C power distributor (engine room junction block assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3C-17 - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3C power distributor (engine room junction block assembly) connector. Disconnect the 2F instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3C-13 - 2F-37 Always Below 1 ohms 3C-13 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-37 - A-15 (HRLY) Always Below 1 ohms 2F-37 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 7
  7. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  8. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  9. REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY). Refer to «COMPONENTS»(ref-400866-S01406661402011051800000)
  1. CHECK OPERATION (LOW BEAM HEADLIGHTS) Check the operation of the low beam headlights. OK Low beam headlights operate normally. NG --> See step 10 OK: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the high beam headlights illuminate. MAIN BODY Tester Display Test Part Control Range Head Light Hi High beam headlights ON/OFF OK High beam headlights illuminate. NG --> See step 3 OK --> See step 8
  3. CHECK HARNESS AND CONNECTOR (SHORT IN RELAY-DRIVEN CIRCUIT) HINT: When a short circuit occurs between the power distributor (engine room junction block assembly) and high beam headlight bulb, a fail-safe function operates to stop high beam headlight operation. Remove the H-LP RH HI fuse from the power distributor (engine room junction block assembly). Turn the light control switch to the head position and turn the dimmer switch to the high position. Check if the high beam headlight LH illuminates. Turn the dimmer switch to the low position. Install the H-LP RH HI fuse and remove the H-LP LH HI fuse. Turn the dimmer switch to the high position. Check if the high beam headlight RH illuminates. OK Either high beam headlight LH or RH illuminates. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the power distributor (engine room junction block assembly) from the engine room relay block. Refer to «COMPONENTS»(ref-400866-S01406661402011051800000) . Connect a positive (+) lead from the battery to terminal 3A-1. Connect a negative (-) lead from the battery to terminals 3C-5 and 3C-17. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 3B-1 - Battery negative Always 11 to 14 V 3B-5 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) NG --> See step 7 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3C power distributor (engine room junction block assembly) connector. Disconnect the 2F instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3C-5 - 2F-20 Always Below 1 ohms 3C-5 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-20 - A-22 (DIM) Always Below 1 ohms 2F-20 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 9
  7. REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY). Refer to «COMPONENTS»(ref-400866-S01406661402011051800000)
  8. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000)
  9. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  10. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000)
  1. CHECK OPERATION (LOW BEAM HEADLIGHTS) Check the operation of the low beam headlights. OK Low beam headlights operate normally. NG --> See step 10 OK: Go to next step
  2. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the high beam headlights illuminate. MAIN BODY Tester Display Test Part Control Range Head Light Hi High beam headlights ON/OFF OK High beam headlights illuminate. NG --> See step 3 OK --> See step 8
  3. CHECK HARNESS AND CONNECTOR (SHORT IN RELAY-DRIVEN CIRCUIT) HINT: When a short circuit occurs between the power distributor (engine room junction block assembly) and high beam headlight bulb, a fail-safe function operates to stop high beam headlight operation. Remove the H-LP RH HI fuse from the power distributor (engine room junction block assembly). Turn the light control switch to the head position and turn the dimmer switch to the high position. Check if the high beam headlight LH illuminates. Turn the dimmer switch to the low position. Install the H-LP RH HI fuse and remove the H-LP LH HI fuse. Turn the dimmer switch to the high position. Check if the high beam headlight RH illuminates. OK Either high beam headlight LH or RH illuminates. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY) Remove the power distributor (engine room junction block assembly) from the engine room relay block. Refer to «COMPONENTS»(ref-400866-S01406661402011051800000) . Connect a positive (+) lead from the battery to terminal 3A-1. Connect a negative (-) lead from the battery to terminals 3C-5 and 3C-17. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 3B-1 - Battery negative Always 11 to 14 V 3B-5 - Battery negative Always 11 to 14 V TEXT IN ILLUSTRATION *1 Component without harness connected (Power Distributor (Engine Room Junction Block Assembly)) NG --> See step 7 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTOR - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 3C power distributor (engine room junction block assembly) connector. Disconnect the 2F instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3C-5 - 2F-20 Always Below 1 ohms 3C-5 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Power Distributor (Engine Room Junction Block Assembly)) *2 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2F-20 - A-22 (DIM) Always Below 1 ohms 2F-20 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 9
  7. REPLACE POWER DISTRIBUTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY). Refer to «COMPONENTS»(ref-400866-S01406661402011051800000)
  8. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)
  9. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(ref-400866-S08751624872011051800000)
  10. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S10379234372011051800000)

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