Page 1257 of 4500
<0029004c004a0011000300180014001d00030027004c00560046005200510051004800460057004c0051004a00030027004c0056005700440051004600480003002600520051005700550052004f0003002800260038000300260052005100510048004600
57005200550003000b00270015000c[
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Measure the resistance according to the value (s) in the table below.
b. Measure the voltage according to the value (s) in the table below.
Standard:
Page 1258 of 4500
DISTANCE CONTROL ECU CONNECTOR TERMINALS RESISTANCE AND VOLTAGE
NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
OK: REPLACE DISTANCE CONTROL ECU ASSY (SEE REPLACEMENT
)
MODE DESCRIPTION
Fig. 52: Problem Symptom Diagnostic Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM
Tester ConnectionConditionSpecified Condition
D2-12 (GND) - Body groundAlwaysBelow 1 ohms
D2-1 (+B) - Body groundIgnition Switch ON10 to 14 V
Page 1259 of 4500
Fig. 53: Wiring Diagram - Television Camera ECU Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (TELEVISION CAMERA ECU SUB BUS
LINE)
Page 1260 of 4500
Fig. 54: Disconnecting Television Camera ECU Connector (T24)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the television camera ECU connector (T24).
c. Measure the resistance according to the value (s) in the table below.
Standard:
TELEVISION CAMERA ECU CONNECTOR TERMINALS RESISTANCE
NG: REPAIR OR REPLACE TELEVISION CAMERA ECU SUB BUS LINE OR CONNECTOR
(CAN-H, CAN-L)
OK: GO TO NEXT STEP
2.CHECK WIRE HARNESS (IG, +B, ACC, GND1)
Tester connectionConditionSpecified value
T24-8 (CANH) - T24-7 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1261 of 4500
Fig. 55: Disconnecting Television Camera ECU Connector (T24)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Reconnect the television camera ECU connector (T24).
b. Disconnect the television camera ECU connector (T25).
c. Measure the resistance according to the value (s) in the table below.
d. Measure the voltage according to the value (s) in the table below.
Standard:
TELEVISION CAMERA ECU CONNECTOR TERMINALS RESISTANCE AND VOLTAGE
NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
OK: REPLACE TELEVISION CAMERA ECU (SEE REPLACEMENT
)
Tester ConnectionConditionSpecified Condition
T25-8 (GND1) - Body groundAlwaysBelow 1 ohms
T25-1 (+B) - Body groundAlways10 to 14 V
T25-2 (IG) - Body groundIgnition Switch ON10 to 14 V
T25-5 (ACC) - Body groundIgnition Switch ACC10 to 14 V
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MODE DESCRIPTION
Fig. 56: Problem Symptom Diagnostic Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
WIRING DIAGRAM
Page 1263 of 4500
Fig. 57: Wiring Diagram - ECM Communication Stop Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECTION PROCEDURE
1.CHECK CAN BUS LINE FOR DISCONNECTION (ECM SUB BUS LINE)
Fig. 58: Disconnecting ECM Connector (E3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the ECM connector (E3).
c. Measure the resistance according to the value (s) in the table below.
Standard:
ECM CONNECTOR TERMINALS RESISTANCE
NG: REPAIR OR REPLACE ECM SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)
Tester connectionConditionSpecified value
E3-25 (CANH) - E3-24 (CANL)Ignition Switch OFF54 to 69 ohms
Page 1264 of 4500
OK: GO TO NEXT STEP
2.CHECK WIRE HARNESS (+B1, +B, E1)
Fig. 59: Disconnecting ECM Connector (E6)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
a. Disconnect the ECM connector (E6).
b. Measure the resistance according to the value (s) in the table below.
c. Measure the voltage according to the value (s) in the table below.
Standard:
ECM CONNECTOR TERMINALS RESISTANCE AND VOLTAGE
NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
Tester ConnectionConditionSpecified Condition
E6-7 (E1) - Body groundAlwaysBelow 1 ohms
E3-5 (+B1) - Body groundIgnition Switch ON10 to 14 V
E3-6 (+B) - Body groundIgnition Switch ON10 to 14 V