TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for TMMT Made)
(a) Disconnect the F72 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection |
Wiring Color |
Terminal Description |
Switch Condition |
Specified Condition |
---|---|---|---|---|
F72-5 (IG+) - F72-29 (GND) |
B - W-B |
Power source (IG) |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
F72-1 (B) - F72-29 (GND) |
V - W-B |
Battery power supply |
Always |
11 to 14 V |
F72-29 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F72 air conditioning amplifier assembly connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Switch Condition |
Specified Condition |
---|---|---|---|---|
F72-26 (RDFG) - F72-29 (GND) |
P - W-B |
Rear window defogger signal |
Ignition switch ON, rear window defogger switch off |
11 to 14 V |
Ignition switch ON, rear window defogger switch on |
Below 1 V |
|||
F72-3 (LIN1) - F72-29 (GND) |
L - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the air conditioning amplifier assembly may be malfunctioning.
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for TMC Made)
(a) Disconnect the F139 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection |
Wiring Color |
Terminal Description |
Switch Condition |
Specified Condition |
---|---|---|---|---|
F139-2 (IG+) - F139-4 (GND) |
B - W-B |
Power source (IG) |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
F139-1 (B) - F139-4 (GND) |
V - W-B |
Battery power supply |
Always |
11 to 14 V |
F139-4 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F139 air conditioning amplifier assembly connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Switch Condition |
Specified Condition |
---|---|---|---|---|
F139-5 (RDFG) - F139-4 (GND) |
P - W-B |
Rear window defogger signal |
Ignition switch ON, rear window defogger switch off |
11 to 14 V |
Ignition switch ON, rear window defogger switch on |
Below 1 V |
|||
F139-14 (LIN1) - F139-4 (GND) |
BE - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the air conditioning amplifier assembly may be malfunctioning.
CHECK AIR CONDITIONING CONTROL ASSEMBLY
(a) Check for pulses according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Switch Condition |
Specified Condition |
---|---|---|---|---|
F61-2 (LIN1) - F61-16 (GND) |
L - W-B*1 BE - W-B*2 |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the air conditioning control assembly may be malfunctioning.
Toyota CH-R Service Manual > Power Window Control System: Operation History List
OPERATION HISTORY LIST
NOTICE:
If the vehicle or vehicle controls are operated (for example, during
initial inspection when the vehicle is brought in for repair) before operation
history has been read out and saved, the operation history information could
be lost.
The funct ...
Toyota CH-R Service Manual > Lin Communication System: No Response from ID BOX (B2789)
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart
key ECU assembly) and ID code box (immobiliser code ECU) stops for 10 seconds or
more.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...