POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU
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CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
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Disconnect the MB and L190*1 main body ECU (multiplex network body ECU) connectors.
Text in Illustration *A Main Body ECU (Multiplex Network Body ECU) with 1 connector *B for LHD *C for RHD - - *1 Main Body ECU (Multiplex Network Body ECU) *2 1 connector 
Text in Illustration *A Main Body ECU (Multiplex Network Body ECU) with 3 connectors *B for LHD *C for RHD - - *1 Main Body ECU (Multiplex Network Body ECU) *2 3 connectors -
Measure the voltage and resistance according to the value(s) in the table below.
Tech Tips
Measure the values on the wire harness side with the connectors disconnected.
Tester Connection Wiring Color Terminal Description Condition Specified Condition MB-11 (GND1) - Body ground - Ground Always Below 1 Ω L190-3 (GND2) - Body ground*1 W-B - Body ground Ground Always Below 1 Ω MB-30 (BECU) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V MB-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V MB-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V MB-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V MB-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V If the result is not as specified, there may be a malfunction in the wire harness.
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Reconnect the MB and L190*1 main body ECU (multiplex network body ECU) connector.
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Measure the voltage and check for pulses according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition 2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder unlocked 11 to 14 V 2B-3 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2B-3 (ACT-) - Body ground LG - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder unlocked 11 to 14 V 2D-11 (ACT-) - Body ground V - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2D-11 (ACT-) - Body ground V - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch) or driver door key cylinder unlocked 11 to 14 V 2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder locked 11 to 14 V 2B-9 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2B-9 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder locked 11 to 14 V 2B-10 (ACT+) - Body ground P - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2B-10 (ACT+) - Body ground P - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder locked 11 to 14 V 2D-12 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder off Below 1 V 2D-12 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch) or driver door key cylinder locked 11 to 14 V 2D-36 (FRCY) - Body ground BR - Body ground*3
V - Body ground*4
Front door courtesy light switch RH input Front door RH open Below 1 V 2D-36 (FRCY) - Body ground BR - Body ground*3
V - Body ground*4
Front door courtesy light switch RH input Front door RH closed 11 to 14 V 2D-35 (FLCY) - Body ground Y - Body ground*3
V - Body ground*4
Front door courtesy light switch LH input Front door LH open Below 1 V 2D-35 (FLCY) - Body ground Y - Body ground*3
V - Body ground*4
Front door courtesy light switch LH input Front door LH closed 11 to 14 V L201-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door LH or RH open Below 1 V L201-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door LH and RH closed Pulse generation L201-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V L201-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder off Pulse generation L201-12 (UL2) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V L201-12 (UL2) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder off Pulse generation L201-7 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V L201-7 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Power switch off, all doors closed and front door LH locked Pulse generation L201-18 (LSFR) - Body ground LG - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V L201-18 (LSFR) - Body ground LG - Body ground Front door RH unlock detection switch input Power switch off, all doors closed and front door RH locked Pulse generation 2B-29 (LSR) - Body ground GR - Body ground Rear door RH unlock detection switch input Rear door RH or LH unlocked Below 1 V 2B-29 (LSR) - Body ground GR - Body ground Rear door RH unlock detection switch input Power switch off, all doors closed, rear door RH and LH locked Pulse generation 2D-25 (LSR) - Body ground GR - Body ground Rear door LH unlock detection switch input Rear door LH or RH unlocked Below 1 V 2D-25 (LSR) - Body ground GR - Body ground Rear door LH unlock detection switch input Power switch off, all doors closed, rear door LH and RH locked Pulse generation L201-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door open Below 1 V L201-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door closed and luggage compartment light switch on 11 to 14 V Back door closed and luggage compartment light switch off Pulse generation L201-23 (BDSU) - Body ground*2 GR - Body ground Back door opener switch input Back door opener switch pushed Below 1 V L201-23 (BDSU) - Body ground*2 GR - Body ground Back door opener switch input Back door opener switch not pushed Pulse generation
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*1: Main Body ECU (Multiplex Network Body ECU) with 3 connectors
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*2: w/o Entry System Back Door Open Function
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*3: for LHD
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*4: for RHD
If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may have a malfunction.
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CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry System Back Door Open Function)
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Disconnect the L196 certification ECU (smart key ECU assembly) connector.
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Measure the resistance according to the value(s) in the table below.
Tech Tips
Measure the values on the wire harness side with the connector disconnected.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L196-27 (TSW5) - Body ground GR - Body ground Back door opener switch signal Back door opener switch on Below 1 Ω L196-27 (TSW5) - Body ground GR - Body ground Back door opener switch signal Back door opener switch off 10 kΩ or higher If the result is not as specified, there may be a malfunction in the wire harness.
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Reconnect the L196 certification ECU (smart key ECU assembly) connector.
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Measure the voltage according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L196-27 (TSW5) - Body ground GR - Body ground Back door opener switch signal Back door opener switch off Pulse generation L196-27 (TSW5) - Body ground GR - Body ground Back door opener switch signal Back door opener switch on Below 1 V If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.
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CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)
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Disconnect the L145 double lock door control relay assembly connector.
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Measure the voltage and resistance according to the value(s) in the table below.
Tech Tips
Measure the values on the wire harness side with the connector disconnected.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L145-1 (+B) - Body ground R - Body ground Auxiliary battery power supply Always 11 to 14 V L145-7 (CPUB) - Body ground L - Body ground Auxiliary battery power supply Always 11 to 14 V L145-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω If the result is not as specified, there may be a malfunction in the wire harness.
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Reconnect the L145 double lock door control relay assembly connector.
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Measure the voltage according to the value(s) in the table below.
Tester Connection Wiring Color Terminal Description Condition Specified Condition L145-5 (DLPD) - Body ground Y - Body ground Front RH double lock position switch input Double lock unset Pulse generation L145-5 (DLPD) - Body ground Y - Body ground Front RH double lock position switch input Double lock set Below 1 V L145-6 (DLPP) - Body ground L - Body ground Front LH double lock position switch input Double lock unset Pulse generation L145-6 (DLPP) - Body ground L - Body ground Front LH double lock position switch input Double lock set Below 1 V L145-11 (DLPR) - Body ground G - Body ground Rear RH double lock position switch input Double lock unset Pulse generation L145-11 (DLPR) - Body ground G - Body ground Rear RH double lock position switch input Double lock set Below 1 V L145-12 (DLPL) - Body ground GR - Body ground Rear LH double lock position switch input Double lock unset Pulse generation L145-12 (DLPL) - Body ground GR - Body ground Rear LH double lock position switch input Double lock set Below 1 V L145-3 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock unset Below 1 V L145-3 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock set 11 to 14 V L145-4 (ACTR) - Body ground R - Body ground All door double lock motor set off output Double lock set Below 1 V L145-4 (ACTR) - Body ground R - Body ground All door double lock motor set off output Double lock unset 11 to 14 V If the result is not as specified, the double lock door control relay assembly may have a malfunction.
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