DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the horns to sound at intervals of 0.4 seconds.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
*1: w/ Smart Key System
PROCEDURE
|
1. |
INSPECT HORNS |
(a) Press the horn switch and check if the horns sound.
|
Result |
Proceed to |
|---|---|
|
Horns sound |
A |
|
Horns do not sound |
B |
| B | |
GO TO HORN SYSTEM |
|
|
2. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the main body ECU (multiplex network body ECU).
Click here
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(b) Disconnect the instrument panel junction block assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
3F-27 - MB-28 (HORN) |
Always |
Below 1 Ω |
| OK | |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG | |
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
Engine Hood Courtesy Switch Circuit
Security Horn CircuitToyota CH-R Service Manual > Safety Connect System: Short in Telephone SUB Antenna Circuit (B1536,B1537)
DESCRIPTION
These DTCs are stored when the DCM (Telematics Transceiver) detects an open or
a short in the telephone and GPS antenna assembly (for Front Side) circuit. The
DCM (Telematics Transceiver) oscillates and receives 824 - 894 MHz or 1850 - 1990
MHz radio-frequency through the telephon ...
Toyota CH-R Service Manual > Rear Brake(for Tmc Made): Reassembly
REASSEMBLY
PROCEDURE
1. TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG
(a) Temporarily install the rear disc brake bleeder plug to the rear disc brake
cylinder assembly.
HINT:
Fully tighten the rear disc brake bleeder plug after bleeding the system.
2. INSTALL REAR DISC BRAKE BLEEDER PLUG ...