FAIL-SAFE CHART
FAIL-SAFE FUNCTION
(a) Headlight ECU sub-assembly
(1) The headlight ECU sub-assemblies stop light operation if the following malfunctions are detected.
Malfunction |
Multi-information Display Warning |
DTC Output |
||
---|---|---|---|---|
Lighting on/off |
LED light source malfunction |
Low beam |
Displayed |
Output |
High beam |
Not Displayed |
Output |
||
Fan malfunction |
Displayed |
Output |
||
Other than above (communication with main body ECU (multiplex network body ECU)) |
Displayed |
Output |
||
Automatic headlight beam level control system |
Displayed |
Output |
||
Power supply |
IG voltage line malfunction |
Displayed |
Output |
|
Other than an IG voltage line malfunction |
Not displayed |
Not output |
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted
Air Conditioner Pressure Sensor): PTC Heater Circuit
DESCRIPTION
The air conditioning amplifier assembly sends operation signals to the PTC heater
relays when quick heater assembly operation conditions are met. Based on the signals
from the air conditioning amplifier assembly, the PTC heater relays turn on, and
power is supplied to the quick he ...
Toyota CH-R Service Manual > Power Steering System: PIG Power Supply Voltage (C1552,C1554)
DESCRIPTION
If a problem occurs in the system, the power source relay circuit and the motor
relay circuit are shut off to stop power assist. The ECU must be replaced when there
is a problem with the relays because the relays are built into the ECU.
DTC No.
Detection Item
...