Terminals Of Ecu

CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

Fig 1: Identifying Main Body ECU Connector Terminals (Instrument Panel Junction Block)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the E60, E61, DO, DK, DM, DD, DA, DF, DJ, and E58 J/B and ECU connectors.

Measure the voltage and resistance according to the value(s) in the table below.

ECU TERMINALS REFERENCE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
DCTY (E61-24) - Body ground	GR - Body ground	Driver door courtesy switch input	Driver door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
RCTY (E60-7) - Body ground	GR - Body ground	Rear right door courtesy switch input	Rear right door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
PCTY (E60-21) - Body ground	G - Body ground	Passenger door courtesy switch input	Passenger door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
LCTY (DO-7) - Body ground	B - Body ground	Rear left door courtesy switch input	Rear left door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
GND3 (E59-1) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
IG (DF-11) - Body ground	B - Body ground	Engine power supply	Engine switch on (IG) → off	10 to 14 V → Below 1V
GND1 (DF-10) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
ACC (DF-2) - Body ground	L - Body ground	ACC power supply	Engine switch on (ACC) → OFF	10 to 14 V → Below 1 V
L1 (DJ-3) - Body ground	R - Body ground	Door control switch LOCK input	Passenger door control switch OFF → LOCK	10 kΩ or higher → Below 1 Ω
UL1 (DJ-4) - Body ground	G - Body ground	Door control switch UNLOCK input	Passenger door control switch OFF → UNLOCK	10 kΩ or higher → Below 1 Ω
LGCY (E60-25) - Body ground	W- Body ground	Luggage compartment door courtesy switch input	Luggage compartment door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the J/B and ECU connectors.

Measure the voltage according to the value(s) in the table below.

ECU TERMINALS REFERENCE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
LSWL (DP-5) - Body ground	GR - Body ground	Rear left door lock position switch input	Rear left door UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)
LSWD (E61-9) - Body ground	L - Body ground	Driver door lock position switch input	Driver door UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)
GSW (DE-8) - Body ground	B - Body ground	Center airbag sensor signal	Engine switch on (IG)	4.5 to 5.5 V
UL3 (E61-10) - Body ground	V - Body ground	Driver door key-linked door unlock input	Using mechanical key, operate driver door lock cylinder to LOCK → UNLOCK	Below 1 V → 10 to 14 V (or pulse generation)
L2 (DK-16) - Body ground	BR - Body ground	Driver door key-linked door lock input	Using mechanical key, operate driver door lock cylinder to UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)
ACT+ (DJ-1) - Body ground	L - Body ground	Door lock motor LOCK drive output (Front passenger door)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → LOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT+ (DP-11) - Body ground	L - Body ground	Door lock motor LOCK drive output (Rear door LH)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → LOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT+ (DF-5) - Body ground	L - Body ground	Door lock motor LOCK drive output (Rear door RH)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → LOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT- (DP-6) - Body ground	LG - Body ground	Door lock motor UNLOCK drive output (Rear door LH)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → UNLOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT- (DF-18) - Body ground	LG - Body ground	Door lock motor UNLOCK drive output (Rear door RH)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → UNLOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
TR+ (E61-1) - Body ground	B - Body ground	Door lock motor UNLOCK drive output (Luggage compartment door)	Luggage compartment open switch (Transmitter) or luggage compartment door key cylinder OFF → UNLOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACTD (E61-5) - Body ground	GR - Body ground	Door lock motor UNLOCK drive output (Driver door)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → UNLOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT+ (DK-2) - Body ground	L - Body ground	Door lock motor LOCK drive output (Driver door)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → LOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
ACT- (DJ-2) - Body ground	LG - Body ground	Door lock motor UNLOCK drive output (Front passenger)	Door control switch (Master switch or passenger side switch) or driver side door key cylinder OFF → UNLOCK → OFF	Below 1 V → 10 to 14 V → Below 1 V
LSWR (E60-5) - Body ground	Y - Body ground	Rear right door lock position switch input	Rear right door UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)
LSWP (E60-27) - Body ground	LG - Body ground	Passenger door lock position switch input	Passenger door UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)

If the result is not as specified, the main body ECU (instrument panel J/B) may have a malfunction.