DESCRIPTION
This is the power source circuit to operate the DCM (Telematics Transceiver).
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 (DCM (TELEMATICS TRANSCEIVER) - BATTERY AND GROUND) |
(a) Disconnect the F134 DCM (Telematics Transceiver) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F134-4 (E) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F134-1 (+B) - F134-4 (E) |
Always |
11 to 14 V |
F134-7 (IG2) - F134-4 (E) |
Ignition switch ON |
11 to 14 V |
F134-8 (ACC) - F134-4 (E) |
Ignition switch ACC |
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 > Seat Heater System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Seat Heater System
DTC No.
Detection Item
Link
B14B5
Lost Communication with Front Seat Temperature Adjustment Switch LIN
...
Toyota CH-R Service Manual > Steering Heater Switch: Inspection
INSPECTION
PROCEDURE
1. INSPECT STEERING HEATER SWITCH
(a) Check the resistance.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch Condition
Specified Conditi ...