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 Service Manual > Navigation System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Navigation System
DTC No.
Detection Item
Link
B1324
Lost Communication with Meter
B153A
GVIF Disconnected (from Extension Module to H/U)
...
Toyota CH-R Service Manual > Door Lock: Transmitter Battery(w/o Smart Key System)
Components
COMPONENTS
ILLUSTRATION
*1
TRANSMITTER BATTERY
*2
TRANSMITTER HOUSING COVER
*3
DOOR CONTROL TRANSMITTER PACKING
*4
TRANSMITTER HOUSING CASE
...