Toyota CH-R Service Manual: IG Power Source Circuit
DESCRIPTION
Power source voltage is supplied to the air conditioning amplifier assembly when the ignition switch is turned ON. This power is used for operating the air conditioning amplifier assembly, servo motors, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - IG POWER SOURCE) |
|
(a) Disconnect the air conditioning amplifier assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
F139-2 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
|
F139-2 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F139-4 (GND) - Body ground |
Always |
Below 1 Ω |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Back-up Power Source Circuit
DESCRIPTION
The back-up power source circuit for the air conditioning amplifier assembly
is shown below. Power is supplied even when the ignition switch is off. This power
is used for diagnostic ...
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DESCRIPTION
The No. 1 cooler thermistor (evaporator temperature sensor) is installed to the
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Toyota CH-R Service Manual > Steering Lock System: Parts Location
PARTS LOCATION
ILLUSTRATION
*1
FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH
-
-
ILLUSTRATION
*1
MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
*2
STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BR ...
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Toyota CH-R Service Manual
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