- ECU-B1 fuse
- Harness or connector
- Multiplex tilt and telescopic ECU
| Last Modified: 11-27-2007 | 1.6 C | |
| Service Category: Steering | Section: Steering Column | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000XZB01HX |
| Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: DESCRIPTION (2008 LX570) | ||
|
DTC |
B2620 |
ECU Power Source Circuit Malfunction |
DESCRIPTION
The ECU power source circuit supplies positive voltage to the multiplex tilt and telescopic ECU.
|
DTC Code |
Detection Condition |
Trouble Area |
|---|---|---|
|
B2620 |
The ECU power source voltage drops to 8 V or less and this condition continues for 10 sec. or more. |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT FUSE (ECU-B1) |
(a) Remove the ECU-B1 fuse from the main body ECU.
(b) Measure the resistance of the fuse.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
ECU-B1 fuse |
Always |
Below 1 Ω |
|
|
2. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY) |
|
(a) Disconnect the E27 connector from the multiplex tilt and telescopic ECU. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E27-9 (ECUB) - Body ground |
Always |
11 to 14 V |
|
|
3. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
|
|