| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001E7I0 |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 10/2022] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B1556; Extension Module Malfunction 2; 2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022] | ||
|
DTC |
B1556 |
Extension Module Malfunction 2 |
DESCRIPTION
These DTCs are stored when a malfunction occurs in the Navigation ECU.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B1556 |
Extension Module Malfunction 2 |
When any of the following conditions is met:
|
Navigation ECU |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the navigation ECU, always replace it with a new one. If a navigation ECU which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The navigation ECU may not operate normally.
HINT:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
Click here
![2019 MY RAV4 RAV4 HV [11/2018 - 10/2019]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs.
Click here
Body Electrical > Navigation System > Clear DTCs
(b) Recheck for DTCs and check that no DTCs are output.
Click here
Body Electrical > Navigation System > Trouble Codes
OK:
No DTCs are output.
| OK |
|
| NG |
|
REPLACE NAVIGATION ECU
|
|
|