Toyota Corolla Cross: Precaution
PRECAUTION
PRECAUTION FOR POWER DISTRIBUTION BOX ASSEMBLY
(a) Do not remove or install the power distribution box assembly with the negative (-) auxiliary battery terminal connected.
NOTICE:
- After the ignition switch is turned off, there may be a waiting time before
disconnecting the negative (-) auxiliary battery terminal.
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- When disconnecting and reconnecting the auxiliary battery.
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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(b) Make sure that the power distribution box assembly is not exposed to water, as it is not waterproof.
(c) Some loads are connected to circuits with dedicated overcurrent protection. Therefore, do not use parts other than those specified for the vehicle.
(d) When replacing the power distribution box assembly, the system may not operate normally if the same part number is not used.
(e) Confirm that all related systems are operating normally before proceeding with troubleshooting.
READ NEXT:
Parts Location
PARTS LOCATION
ILLUSTRATION
*1
for HEV Model
-
-
*3
NO. 1 ENGINE ROOM RELAY BLOCK
- INP STD NO. 1
- INP STD NO. 2
-
System Diagram
SYSTEM DIAGRAM
System Description
SYSTEM DESCRIPTION
LOAD OPERATION OUTPUT
(a) Load is turned on or off according to the operation signals and switch signals
from each ECU.
Components
Power Distribution Box
SEE MORE:
Ignition Switch
RemovalREMOVAL CAUTION / NOTICE / HINT
Procedure Part Name Code
1 LOWER STEERING COLUMN COVER
45287
- -
2 IGNITION OR STARTER SWITCH ASSEMBLY
84450 -
- - PROCEDURE
1. REMOVE LOWER STEERING COLUMN COVER
Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION When the ignition switch cannot be turned to ACC or ON, interior verification may be abnormal or there may be a malfunction in the ACC relay or IG relay circuit. If interior verification cannot be performed, the certification ECU (smart key ECU assembly) may be malfunctioning or communic
