Lighting System (Interior) (Diagnostics & Circuit Tests): Diagnosis Toyota Corolla XI

PROBLEM SYMPTOMS TABLE [08/2013 - ]

HINT

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

ILLUMINATED ENTRY SYSTEM

1. *1: w/ Smart Key System

BATTERY SAVING CONTROL

INTERIOR LIGHT POWER SOURCE CONTROL

PERSONAL LIGHT

ROOM LIGHT

LUGGAGE COMPARTMENT LIGHT

INSTRUMENT PANEL ILLUMINATION

Scheme 11

Scheme 12

Scheme 13

1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *A Main Body ECU (Multiplex Network Body ECU) with 1 Connector - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 1 Connector - - *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - - *1 Main Body ECU (Multiplex Network Body ECU) - - *a 2 Connectors - - Disconnect the 3A, 3B, 3C and 3D driver side junction block assembly connectors. Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 3A-24 - Body ground R - Body ground Battery power supply Always 11 to 14 V 3A-51 - Body ground R - Body ground Battery power supply Always 11 to 14 V 3B-1 - Body ground W - Body ground Battery power supply Always 11 to 14 V 3C-9 - Body ground W-B - Body ground Ground Always Below 1 ohms 3D-12 - Body ground W-B - Body ground Ground Always Below 1 ohms If the result is not as specified, there may be a malfunction in the wire harness. Reconnect the 3A, 3B, 3C and 3D driver side junction block assembly connectors. Measure the voltage and check for pulses according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 3D-27 - Body ground B - Body ground ACC power supply Ignition switch ACC 11 to 14 V Ignition switch off Below 1 V 3D-25 - Body ground G - Body ground IG power supply Ignition switch ON 11 to 14 V Ignition switch off Below 1 V E31-15 (DOMR)- Body ground L - Body ground DOME CUT relay drive output DOME CUT relay off 11 to 14 V DOME CUT relay on Below 1 V 3C-42 - Body ground R - Body ground Interior lights power supply DOME CUT relay off Below 1 V DOME CUT relay on 11 to 14 V 3C-54 - Body ground L - Body ground Interior lights drive output Personal light off (when operated by illuminated entry system) 11 to 14 V Personal light on (when operated by illuminated entry system) Below 1 V 3E-40 - Body ground P - Body ground No. 1 luggage compartment light assembly power supply DOME CUT relay off Below 1 V DOME CUT relay on 11 to 14 V 3E-38 - Body ground LG - Body ground Luggage compartment door courtesy light switch input Luggage compartment door open Below 1 V Luggage compartment door closed Pulse generation 3E-34 - Body ground W - Body ground Front door courtesy light switch assembly (LH) input Front door LH open Below 1 V Front door LH closed Pulse generation E31-19 (FRCY) - Body ground V - Body ground Front door courtesy light switch assembly (RH) input Front door RH open Below 1 V Front door RH closed Pulse generation E31-1 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch assembly (LH) input Rear door LH open Below 1 V Rear door LH closed Pulse generation E31-6 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly (RH) input Rear door RH open Below 1 V Rear door RH closed Pulse generation E31-7 (LSFL) - Body ground Y - Body ground Front door unlock detection switch LH input Front door LH locked Pulse generation Front door LH unlocked Below 1 V E31-18 (LSFR) - Body ground LG - Body ground Front door unlock detection switch RH input Front door RH locked Pulse generation Front door RH unlocked Below 1 V 3E-24 - Body ground Y - Body ground Rear door unlock detection switch LH input Rear door LH and rear door RH locked Pulse generation Rear door LH or rear door RH unlocked Below 1 V 3E-39 - Body ground Y - Body ground Rear door unlock detection switch RH input Rear door LH and rear door RH locked Pulse generation Rear door LH or rear door RH unlocked Below 1 V If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may be malfunctioning.
2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System) Measure the voltage according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition E59-16 (SWIL) - E59-24 (AGND) G - BR Engine switch illumination drive output Engine switch illumination on 11 to 14 V Engine switch illumination off Below 1 V If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.

DIAGNOSIS SYSTEM [08/2013 - ]

1. DESCRIPTION Lighting system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION [08/2013 - ]»(ref-635429-S24386271762014070300000)
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery.

DATA LIST / ACTIVE TEST [08/2013 - ]

1. DATA LIST NOTE: In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note ACC SW Ignition switch ACC signal ON or OFF ON: Ignition switch ACC OFF: Ignition switch off - IG SW Ignition switch ON signal ON or OFF ON: Ignition switch ON OFF: Ignition switch off - RR Door Courtesy SW Rear door courtesy light switch assembly (RH) signal ON or OFF ON: Rear door RH open OFF: Rear door RH closed - RL Door Courtesy SW Rear door courtesy light switch assembly (LH) signal ON or OFF ON: Rear door LH open OFF: Rear door LH closed - FR Door Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked UNLOCK: Front door RH unlocked - FR Door Courtesy SW Front door courtesy light switch assembly (RH) signal ON or OFF ON: Front door RH open OFF: Front door RH closed - FL Door Lock Pos Front door LH unlock detection switch signal LOCK or UNLOCK LOCK: Front door LH locked UNLOCK: Front door LH unlocked - FL Door Courtesy SW Front door courtesy light switch assembly (LH) signal ON or OFF ON: Front door LH open OFF: Front door LH closed - RR-Door Lock Pos SW Rear door RH and LH unlock detection switch signal ON or OFF ON: Rear door RH or LH unlocked OFF: Rear door RH and LH locked - RL-Door Lock Pos SW Rear door RH and LH unlock detection switch signal ON or OFF ON: Rear door RH or LH unlocked OFF: Rear door RH and LH locked - Luggage Courtesy SW Luggage compartment door courtesy switch signal ON or OFF ON: Luggage compartment door open OFF: Luggage compartment door closed - Interior Light Control Operation of the illuminated entry system ON or OFF Customized value is displayed for Main Body ECU with 2 Connectors I/L ON W/Door Key Unlock Function that lights up the interior lights when the doors are unlocked ON or OFF Customized value is displayed - Lighting Time Lighting time of the delay control function (illuminated entry system) 15s, 7.5s or 30s Customized value is displayed - Room Light when Aprchd Function that lights up the interior lights when a key enters any actuation area ON or OFF Customized value is displayed w/ Smart Key System I/L when ACC OFF Function that lights up the interior lights when the ignition switch is turned from ON or ACC to off ON or OFF Customized value is displayed
2. ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Body Electrical / (desired system) / Active Test. Perform the Active Test according to the display on the Techstream. Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note Illuminated Entry System Turns on the lights that are controlled by the illuminated entry system*1 ON or OFF - Relay for Interior Light Auto Cut Function DOME CUT relay ON or OFF ON: DOME CUT relay off (interior lights turn off) OFF: DOME CUT relay on (interior lights turn on) When performing this Active Test, turn on all the interior lights. *1: Refer to System Description for the lights that are controlled by the illuminated entry system. Refer to «SYSTEM DESCRIPTION [08/2013 - ]»(ref-635439-S11248335292014070300000) Body Electrical > Smart Key > Active Test Tester Display Measurement Item Control Range Diagnostic Note Power/Engine SW Light Engine switch illumination ON or OFF w/ Smart Key System