Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001C0XC |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2019] |
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model (for Hatchback)): C1582; Assist Map Number Mismatch; 2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2019] |
DTC
|
C1582
|
Assist Map Number Mismatch
|
DESCRIPTION
When an incorrect hybrid vehicle control ECU, main body ECU (multiplex network body ECU) or skid control ECU (brake actuator assembly) is installed after the assist map has been written to the power steering ECU with motor assembly, DTC C1582 is stored because the information stored in the power steering ECU with motor assembly does not match the vehicle specifications.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Warning Indicate
|
Return-to-normal Condition
|
Note
|
C1582
|
Assist Map Number Mismatch
|
Assist map number mismatch
|
-
CAN communication system
-
Incorrect ECM
-
Incorrect main body ECU (multiplex network body ECU)
-
Incorrect skid control ECU (brake actuator assembly)
-
Power steering ECU with motor assembly
|
EPS warning light: Does not come on
|
Assist Map Writing is performed or the engine switch is turned on (IG) again
|
-
|
CAUTION / NOTICE / HINT
NOTICE:
If the power steering ECU with motor assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here
HINT:
Related parts store information necessary for assist map writing.
Related Part:
-
ECM
-
Main body ECU (Multiplex network body ECU)
-
Skid control ECU (Brake actuator assembly)
PROCEDURE
1.
|
CHECK CAN COMMUNICATION SYSTEM
|
(a) Check for DTCs.
Click here
Result
|
Proceed to
|
CAN communication system DTCs are not output.
|
A
|
CAN communication system DTCs are output.
|
B
|
A
|
|
|
(a) Check if the part below has been replaced with an incorrect part in the past.
Related Part
|
ECM
|
Main body ECU (Multiplex network body ECU)
|
Skid control ECU (Brake actuator assembly)
|
NOTICE:
When removing the related part to check it, be sure to follow the appropriate procedures and precautions.
(b) When DTC C1582 is output and parts have not been exchanged, replace the power steering ECU with motor assembly as it may have an internal malfunction.
NOTICE:
If the power steering ECU with motor assembly has been replaced, perform assist map writing.
Click here
Result
|
Proceed to
|
The related part has an incorrect part number.
|
A
|
The related part has the correct part number, or a related part and power steering ECU with motor assembly have not been replaced.
|
B
|
A
|
|
|
3.
|
REPLACE RELATED PART WITH PART THAT HAS CORRECT PART NUMBER
|
(a) Replace the related part with one that has the correct part number.
NEXT
|
|
|
(a) Check for DTCs.
Click here
Chassis > EMPS > Trouble Codes
Result
|
Proceed to
|
DTCs are not output.
|
A
|
DTCs are output.
|
B
|
A |
|
END
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|