Terminals Of Ecu

CHECK MAIN BODY ECU RH (COWL SIDE J/B RH)

Fig 1: Main Body ECU RH Connector Terminals Identification (Cowl Side Junction Block RH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the P1, J75, RA, RD, RJ and RK J/B connectors.

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

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
DCTY (P1-14) - Body ground	W - Body ground	Driver door courtesy switch input	Driver door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
RCTY (P1-16) - Body ground	BE - Body ground	Rear right door courtesy switch input	Rear right door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
PCTY (J75-23) - Body ground	B - Body ground	Passenger door courtesy switch input	Passenger door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
LCTY (RA-11) - Body ground	BR - Body ground	Rear left door courtesy switch input	Rear left door CLOSED → OPEN	10 kΩ or higher → Below 1 Ω
GND2 (RD-7) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
IG (RM-1) - Body ground	B-W - Body ground	Engine power supply	Engine switch on (IG) → off	10 to 14 V → Below 1 V
GND1 (RD-17) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
ACC (RM-1) - Body ground	B-W - Body ground	ACC power supply	Engine switch on (ACC) → off	10 to 14 V → Below 1 V
L1 (RJ-7) - Body ground	BR - Body ground	Passenger door control switch LOCK input	Passenger door control switch OFF → LOCK	10 kΩ or higher → Below 1 Ω
UL1 (RJ-10) - Body ground	B - Body ground	Passenger door control switch UNLOCK input	Passenger door control switch OFF → UNLOCK	10 kΩ or higher → Below 1 Ω
BECU (RK-5) - Body ground	G-R - Body ground	+B (BECU) power supply	Always	10 to 14 V

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

Reconnect the J/B connectors.

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

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
LSWL (RA-2) - Body ground	R - Body ground	Rear left door lock position switch input	Rear left door UNLOCK → LOCK	Below 1 V → 10 to 14 V (or pulse generation)
GSW (RA-7) - GND	L - Body ground	Center airbag sensor signal	Engine switch on (IG)	4.5 to 5.5 V
ACTD (P1-4) - Body ground	L - 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+ (RJ-9) - Body ground	L - Body ground	Door lock motor LOCK drive output (All doors)	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- (RJ-17) - Body ground	LG - Body ground	Door lock motor UNLOCK drive output (Passenger and rear RH doors)	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- (RD-24) - Body ground	LG - Body ground	Door lock motor UNLOCK drive output (Rear LH 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
LSWR (J75-5) - Body ground	V - 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 (J75-27) - Body ground	W - 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 RH (cowl side J/B RH) may have a malfunction.

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

Fig 2: Identifying M17 Connector Terminals

Disconnect the M17 switch connector.

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

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
CPUB (M17-15) - E (M17-12)	G - W-B	Battery power supply	Always	10 to 14 V
SIG (M17-18) - E (M17-12)	B - W-B	SIG power supply	Engine switch on (IG) → off	10 to 14 V → Below 1 V
E (M17-12) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
KL (M17-4) - E (M17-12)	L - W-B	Door key-linked door lock input	Using key, operate driver door lock cylinder from FREE → LOCK	10 kΩ or higher → Below 1 Ω
KUL (M17-13) - E (M17-12)	W - W-B	Door key-linked door unlock input	Using key, operate driver door lock cylinder from FREE → UNLOCK	10 kΩ or higher → Below 1 Ω
LSW (M17-1) - E (M17-12)	SB - W-B	Driver side door lock position switch input	Driver side door UNLOCK → LOCK	Below 1 Ω → 10 kΩ or higher

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