DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.
Symptom |
Trouble Area |
---|---|
No resistance exists between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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DTC check procedure: Turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch), turn the cruise control main switch on, turn the LDA main switch on and then drive the vehicle at a speed of 60 km/h (37 mph) or more for approximately 5 minutes or more.
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HINT:
PROCEDURE
1. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the central gateway ECU (network gateway ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
*1 |
DLC3 |
- |
- |
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
*b |
to ECM |
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
Connected to |
---|---|---|---|
F74-18 (CA4H) - F41-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
ECM |
F74-17 (CA4L) - F41-4 (CG) |
OK | ![]() |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
|
2. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (ECM - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the A38 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
*1 |
DLC3 |
- |
- |
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
*b |
to ECM |
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F74-18 (CA4H) - F41-4 (CG) |
Cable disconnected from negative (-) battery terminal |
200 Ω or higher |
F74-17 (CA4L) - F41-4 (CG) |
OK | ![]() |
REPLACE ECM
|
NG | ![]() |
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (ECM - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
Toyota CH-R Service Manual > Power Window Control System: Key-off Operation Function Operates even if Operating Conditions are not Satisfied
DESCRIPTION
When the front doors are closed, each power window regulator motor assembly can
be operated for approximately 45 seconds after the ignition switch is turned from
ON to off by receiving operation permission signals from the main body ECU (multiplex
network body ECU). However, when ...
Toyota CH-R Service Manual > Front Drive Shaft Assembly: Disassembly
DISASSEMBLY
PROCEDURE
1. SEPARATE FRONT NO. 2 AXLE INBOARD JOINT BOOT CLAMP
(a) Secure the drive shaft in a vise between aluminum plates.
NOTICE:
Do not overtighten the vise.
(b) Using pliers, separate the front No. 2 axle inboard joint boot clamp.
...