DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Radio Receiver Assembly Communication Stop Mode |
Any of the following conditions are met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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DTC check procedure: Turn the ignition switch ON and wait at least approximately 60 seconds.
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HINT:
PROCEDURE
1. |
CHECK FOR OPEN IN CAN BUS LINES (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Disconnect the radio and display receiver assembly connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Reconnect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F129-4 (+B1) - Body ground |
Always |
11 to 14 V |
F129-15 (ACC1) - Body ground |
Ignition switch ACC |
11 to 14 V |
F131-19 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
OK |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 22 (CA2H) and 7 (CA2L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Symptom
Trouble Area
Resistance b ...
Toyota CH-R Service Manual > Occupant Classification System: Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
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FUNCTION OF PASSENGER AIRBAG ON/OFF INDICATOR
(a) Initial check
(1) Turn the ignition switch to ON.
(2) The passenger airbag ON/OFF indicator comes on for approximately 4 seconds,
then goes off for approximately 2 seconds.
(3) Ap ...