Terminals Of Ecu

INSPECT TVIP ECU

Disconnect the T3 ECU connector.

Fig 1: Identifying T3 ECU Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance and voltage of the connector.

Standard

RESISTANCE SPECIFICATION

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
E (T3-29) - Body ground	W-B - Body ground	Always	Below 1 Ω
+B1 (T3-2) - Body ground	R-B - Body ground	Always	10 to 14 V
CTY (T3-19) - Body ground	R - Body ground	Front passenger's door fully closed → Opened Rear right door fully closed → Opened Rear left door fully closed → Opened Grass hatch fully closed → Opened Back door fully closed → Opened	10 kΩ or higher → Below 1 Ω
DSWD (T3-40) - Body ground	R-W - Body ground	Driver's door fully closed → Opened	10 kΩ or higher → Below 1 Ω
KSW (T3-12) - Body ground	L-B - Body ground	No key in ignition key cylinder → Key inserted	0 V → 10 to 14 V
L2 (T3-16) - Body ground	G - Body ground	Driver's door lock UNLOCK → LOCK	0 V → 10 to 14 V → Below 1 V
UL3 (T3-17) - Body ground	L-Y - Body ground	Driver's door lock LOCK → UNLOCK	0 V → 10 to 14 V → Below 1 V
UL2 (T3-18) - Body ground	L-B - Body ground	Front passenger's door lock LOCK → UNLOCK	0 V → 10 to 14 V → Below 1 V
IRSG (T3-28) - Body ground	W - Body ground	Driver's door lock LOCK → UNLOCK	Pulse generation
IG (T3-10) - Body ground	B-W - Body ground	Ignition switch OFF → ON	0 V → 10 to 14 V
SRLY (T3-21) - Body ground	B-R - Body ground	Ignition switch OFF → ON	0 V → 10 to 14 V
LSWD (T3-37) - Body ground	W - Body ground	Driver's door UNLOCK → LOCK	0 V → 10 to 14 V
LSWP (T3-38) - Body ground	W-R - Body ground	Front passenger's door UNLOCK → LOCK	0 V → 10 to 14 V

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

Measure the resistance and voltage of connectors.

Standard voltage

VOLTAGE SPECIFICATION

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
DMPL (T3-9) - E (T3-29)	R-W - W-B	Armed state → Alarm sounding state	Pulse generation
HEAD (T3-6) - E (T3-29)	R-W-B	Light control switch position HEAD → OFF or TAIL	Below 1 V → 10 to 14 V
HZAD (T3-8) - E (T3-29)	Y-B - W-B	Armed state → Alarm sounding state	Pulse generation
IND (T3-25) - E (T3-29)	R-W - W-B	Security indicator lights up. (30 sec. duration)	10 to 14 V
IOUT (T3-11) - E (T3-29)	L - W-B	Armed state → Alarm sounding state (on glass breakage detection)	Pulse generation
HORN (T3-5) - E (T3-29)	G-Y - W-B	Armed state → Alarm sounding state	Pulse generation

If the result is not as specified, the TVIP ECU may have a malfunction.

INSPECT INTEGRATION RELAY

Disconnect the I12 relay connector.

Fig 2: Identifying Integration Relay I12 Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the connector.

Standard resistance

RESISTANCE SPECIFICATION

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
PCTY (I12-13) - Body ground	R-W - Body ground	Front passenger's door fully closed → Opened	10 kΩ or higher → Below 1 Ω

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

INSPECT INSTRUMENT PANEL J/B (INTEGRATION RELAY)

Disconnect the ID J/B connector of the instrument panel J/B.

Fig 3: Identifying ID J/B Connector Of Instrument Panel J/B
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the wire harness side connector.

Standard resistance

RESISTANCE SPECIFICATION

Symbols (Terminal No.)	Wiring Color	Condition	Specified Condition
DCTY (ID-1) - Body ground	R-W - Body ground	Driver's door fully closed → Opened	10 kΩ or higher → Below 1 Ω
P-DR (ID-14) - Body ground	R-B - Body ground	Rear LH door fully closed → Opened	10 kΩ or higher → Below 1 Ω
P-DR (ID-15) - Body ground	R-Y - Body ground	Rear RH door fully closed → Opened	10 kΩ or higher → Below 1 Ω

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