DESCRIPTION
With power back door: The signal for manual locking/unlocking operation of the driver/passenger side door and the signal for locking/unlocking operation interlocked with the driver side door key cylinder are sent to the back door ECU from the body ECU using the MPX line. In response to these signals, the back door ECU causes the back door lock to be locked/unlocked. The ON signal of the back door opener switch, which is output when the switch is pressed, is directly sent to the back door ECU. In response to this signal, the back door ECU causes the back door lock to be open.
Without power back door: The signal for manual locking/unlocking operation of the driver/passenger side door and the signal for locking/unlocking operation interlocked with the driver side door key cylinder are sent to the body ECU. The ON signal of the back door opener switch, which is output when the switch is pressed, is sent to body ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK POWER BACK DOOR
2 CHECK DTC
3 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
HINT: During the ACTIVE TEST, the intelligent tester sends a signal to the body ECU to drive all the power door lock motors. If all the power door locks operate, the power door lock motors and the harness between the power door lock motors and body ECU are considered to be functioning normally.
BODY (Multiplex network body ECU)
4 INSPECT BACK DOOR LOCK ASSEMBLY
Then, check operation of the latch.
Standard: The latch turns to the open-latch position
Standard
Standard resistance
Standard resistance
Standard resistance
5 CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - POWER BACK DOOR ECU)
Standard resistance
6 READ VALUE OF DATA LIST
BODY (Multiplex network body ECU)
7 INSPECT BACK DOOR OPENER SWITCH ASSEMBLY
Standard resistance
8 CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH - POWER BACK DOOR ECU - BODY GROUND)
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
9 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
HINT: During the ACTIVE TEST, the intelligent tester sends a signal to the body ECU to drive all the power door lock motors. If all the power door locks operate, the power door lock motors and the harness between the power door lock motors and body ECU are considered to be functioning normally.
BODY (Multiplex network body ECU)
10 INSPECT BACK DOOR LOCK ASSEMBLY
Then, check operation of the latch.
Standard: The latch turns to the open-latch position
Standard
Standard resistance
11 CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - DRIVER SIDE J/B)
Standard resistance
12 READ VALUE OF INTELLIGENT TESTER
BODY
13 INSPECT BACK DOOR OPENER SWITCH ASSEMBLY
Standard resistance
14 CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH - DRIVER SIDE J/B)
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disassembly
1. REMOVE NO. 2 FRONT AXLE INBOARD JOINT BOOT LH CLAMP
(a) Using pliers, remove the No. 2 front axle inboard
joint boot LH clamp, as shown in the illustration.
2. REMOVE FRONT AXLE INBOARD JOINT BOOT LH
CLAMP
(a) Remove the front axle inboard joint boot LH clamp
using the same procedures a ...
Open in Pump Motor Circuit
DTC C1251/51 Open in Pump Motor Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ABS MOTOR RELAY)
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the ACTIVE TEST mode on the intelligent tester.
...
Data list / active test
1. DATA LIST
HINT:
Using the DATA LIST displayed on the intelligent tester,
you can read the value of the switch, sensor, actuator,
etc. without parts removal. Reading the DATA LIST as
the first step of troubleshooting is one way to shorten the
labor time.
Connect the intelligent tester to ...