DESCRIPTION
This DTC is stored when the skid control ECU (brake actuator assembly) judges that an abnormality occurred in the circuit used to operate the pump motor.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1428 |
Motor Circuit Malfunction |
A malfunction occurs in the pump motor circuit. |
Pump motor circuit |
WIRING DIAGRAM
Refer to DTC C146C.
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CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (+BM TERMINAL) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connector. |
|
(b) Disconnect the A42 skid control ECU (brake actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A42-1 (+BM) - Body ground |
Always |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (+BM CIRCUIT) |
|
2. |
CHECK HARNESS AND CONNECTOR (GND2 TERMINAL) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT) |
|
3. |
RECONFIRM DTC |
(a) Reconnect the A42 skid control ECU (brake actuator assembly) connector.
(b) Clear the DTCs.
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(c) Turn the ignition switch off.
(d) Start the engine.
(e) Perform a road test.
(f) Check if the same DTC is output.
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Result |
Proceed to |
---|---|
DTC C1428 is not output. |
A |
DTC C1428 is output. |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK
|
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
DESCRIPTION
This DTC is stored when items controlled by the main body ECU (multiplex network
body ECU) cannot be customized via the audio and visual system vehicle customization
screen.
HINT:
The main body ECU (multiplex network body ECU) controls the items for the following
systems that ar ...
Toyota CH-R Service Manual > Immobiliser System(w/ Smart Key System): Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) The certification ECU (smart key ECU assembly) and ECM control the vehicle
immobiliser system functions. Immobiliser system data and Diagnostic Trouble Codes
(DTCs) can be read through the vehicle Data Link Connector 3 (DLC3).
In some cases, a malfunction may ...