- CAN communication system
- Incorrect ECM
- Incorrect brake actuator assembly (Skid control ECU)
- Steering column assembly
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000ZY3L |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - ] |
| Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1582; Assist Map Number Mismatch; 2017 - 2020 MY Sienna [08/2016 - ] | ||
|
DTC |
C1582 |
Assist Map Number Mismatch |
DESCRIPTION
When an incorrect ECM or brake actuator assembly (skid control ECU) is installed after the assist map has been recorded in the steering column assembly (power steering ECU), then DTC C1582 is stored because the data does not match the vehicle specifications.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1582 |
Assist map number mismatch |
|
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs of the CAN communication system (See page
![2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM](/t3Portal/stylegraphics/info.gif)
).
Result
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
GO TO CAN COMMUNICATION SYSTEM (See page
|
|
|
2. |
CHECK ECM |
(a) Check that the correct ECM is installed.
OK:
The correct ECM is installed.
| NG |
|
|
|
3. |
CHECK SFI SYSTEM |
(a) Check for DTCs of the SFI system (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| B |
|
|
|
4. |
CHECK BRAKE ACTUATOR ASSEMBLY |
(a) Check that the correct brake actuator assembly (skid control ECU) is installed.
OK:
The correct brake actuator assembly (skid control ECU) is installed.
| NG |
|
REPLACE BRAKE ACTUATOR ASSEMBLY (See page
|
|
|
5. |
CHECK VEHICLE STABILITY CONTROL SYSTEM |
(a) Check for DTCs of the vehicle stability control system (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
DTCs are output |
B |
| A |
|
| B |
|
GO TO VEHICLE STABILITY CONTROL SYSTEM (See page
|
|
|