DESCRIPTION
This is the power source circuit to operate the radio and display receiver assembly.
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 (RADIO AND DISPLAY RECEIVER ASSEMBLY - POWER SOURCE) |
(a) Disconnect the F129 and F131 radio and display receiver assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F129-1 (GND1) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F129-4 (+B1) - F129-1 (GND1) |
Always |
11 to 14 V |
F129-15 (ACC1) - F129-1 (GND1) |
Engine switch on (ACC) |
11 to 14 V |
F131-19 (IG) - F129-1 (GND1) |
Engine switch on (IG) |
11 to 14 V |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Owners Manual > Do-it-yourself maintenance: Wireless remote control/electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Flathead screwdriver
Small flathead screwdriver
Lithium battery
Vehicles without a smart key system: CR1620
Vehicles with a smart key system: CR2032
Replacing the battery
Vehicles without a smart ...
Toyota CH-R Owners Manual > Do-it-yourself maintenance: Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
1. Turn the engine switch off.
2. Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift up the cover.
When closing the co ...