TERMINALS OF ECU
CHECK WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor)
(a) Disconnect the F56 windshield wiper relay assembly connector.
(1) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F56-2 (IG) - Body ground |
B - Body ground |
Ignition switch ON signal (Power source circuit) |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
F56-25 (W) - Body ground |
B - Body ground |
Front washer switch signal |
Front washer switch on |
Below 1 Ω |
Front washer switch off |
10 kΩ or higher |
|||
F56-8 (VR2) - F56-21 (VR1) |
W - G |
Adjusting volume signal |
controlling sensitivity setting switch* changed |
0 to 231 Ω |
F56-12 (E) - Body ground |
W-B - Body ground |
Body ground |
Always |
Below 1 Ω |
F56-16 (WIG) - Body ground |
B - Body ground |
Power source signal |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
HINT:
*: The rain sensor sensitivity can be adjusted by the controlling sensitivity setting switch.
If the result is not as specified, there may be a malfunction in the wire harness.
(b) Reconnect the F56 windshield wiper relay assembly connector.
(1) Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F56-10 (+1) - Body ground |
G - Body ground |
Front wiper motor low speed signal |
Front wiper motor off |
Below 1 Ω |
HINT:
If the result is not as specified, the windshield wiper relay assembly may be malfunctioning.
(2) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F56-1 (+SM) - Body ground |
G - Body ground |
Front wiper motor position detection signal |
Front wiper motor in low or high operation |
Below 1 V ←→ 11 to 14 V |
Front wiper motor off |
Below 1 V |
|||
F56-3 (C1) - F56-5 (CO) |
V - Y |
Front wiper switch AUTO signal |
Ignition switch ON, front wiper switch in AUTO |
Below 1 V |
Ignition switch ON, front wiper switch off |
11 to 14 V |
|||
F56-25 (W) - Body ground |
B - Body ground |
Front washer switch signal |
Ignition switch ON, front washer switch on |
Below 1 V |
Ignition switch ON, front washer switch off |
11 to 14 V |
|||
F56-10 (+1) - Body ground |
G - Body ground |
Front wiper motor low speed signal |
Front wiper motor in low operation |
11 to 14 V |
F56-11 (+2) - Body ground |
W - Body ground |
Front wiper motor high speed signal |
Front wiper motor in high operation |
11 to 14 V |
Front wiper motor off |
Below 1 V |
|||
F56-14 (MPX1) - Body ground |
V - Body ground |
Rain sensor signal |
Ignition switch ON |
Pulse generation |
F56-24 (SPD) - Body ground |
V - Body ground |
Vehicle speed signal |
Driving at approximately 20 km/h (12 mph) |
Pulse generation (See waveform 1) |
HINT:
If the result is not as specified, the windshield wiper relay assembly may be malfunctioning.
(3) Waveform 1 (Reference):
Item |
Condition |
---|---|
Tester Connection |
F56-24 (SPD) - Body ground |
Tool Setting |
5 V/DIV., 20 ms./DIV. |
Vehicle Condition |
Driving at approximately 20 km/h (12 mph) |
HINT:
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by A in the illustration narrows.
CHECK COMBINATION METER ASSEMBLY
(a) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F4-17 (WLVL) - Body ground*1 |
LG - Body ground |
Washer fluid level signal |
Ignition switch ON, washer fluid level not low |
11 to 14 V |
Ignition switch ON, washer fluid level low |
Below 1 V |
(b) Measure the waveform according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F4-6 (+S) - Body ground |
V - Body ground |
Speed signal for other system (Output) |
Driving at approximately 20 km/h (12 mph) |
Pulse generation (See waveform 1) |
(1) Waveform 1 (Reference):
Item |
Condition |
---|---|
Tester Connection |
F4-6 (+S) - Body ground |
Tool Setting |
5 V/DIV., 20 ms./DIV. |
Vehicle Condition |
Driving at approximately 20 km/h (12 mph) |
HINT:
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by A in the illustration narrows.
Toyota CH-R Service Manual > Shift Lever: Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE SHIFTING HOLE COVER SUB-ASSEMBLY
(a) Disengage the 4 guides and 6 claws to remove the shifting hole cover
sub-assembly from the upper console panel sub-assembly.
2. REMOVE SHIFT POSITION INDICATOR
...
Toyota CH-R Service Manual > Tire Pressure Warning System: No Signal from Transmitter ID1 (C2121/21-C2125/25,C2181/81-C2185/85)
DESCRIPTION
The tire pressure warning valve and transmitters that are installed in the tire
and wheel assemblies measure the tire pressures. The measured values are transmitted
to the tire pressure warning ECU and receiver in the vehicle as radio waves. The
ECU compares the measured tire pres ...