DESCRIPTION The ECU power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. |
DTC Code | Detection Condition |
Trouble Area | | B2620 |
The voltage of the ECU power source drops to 8 V or less and this condition continues for 10 seconds or more. |
- ECU-DCC NO. 2 fuse
- Harness or connector
- Multiplex tilt and telescopic ECU
| WIRING DIAGRAM
 CAUTION / NOTICE / HINT
HINT: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
| 1. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY) |
| (a) Disconnect the J174 multiplex tilt and telescopic ECU connector. |
 |
|
*a | Front view of wire harness connector
(to 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 | |
J174-9 (ECUB) - Body ground |
Always | 11 to 14 V |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK |
 | |
| 2. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) |
| (a) Disconnect the J174 multiplex tilt and telescopic ECU connector. |
 |
|
*a | Front view of wire harness connector
(to Multiplex Tilt and Telescopic ECU) | | |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
J174-8 (GND2) - Body ground |
Always | Below 1 Ω |
| OK |
| REPLACE MULTIPLEX TILT AND TELESCOPIC ECU |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR | | 
