Lexus ES: Lost Communication with Body Control Module "B" Missing Message (U014287,U015587,U020887)
DESCRIPTION
The multiplex tilt and telescopic ECU receives signals from the main body ECU (multiplex network body ECU), combination meter assembly and position control ECU assembly (driver seat) via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
| U014287 | Lost Communication with Body Control Module "B" Missing Message | One of the following conditions is met: -
Signals (memory-related data) from the main body ECU (multiplex network body ECU) are interrupted for 3.3 seconds.
-
Signals (IG switch signals) from the main body ECU (multiplex network body ECU) are interrupted for 10 seconds or more.
| -
CAN communication system
-
Main body ECU (Multiplex network body ECU)
|
| U015587 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message | Signals from the combination meter assembly are interrupted for 10 seconds or more. | -
CAN communication system
-
Combination meter assembly
|
| U020887 | Lost Communication with "Seat Control Module A" Missing Message | Signals (memory or recall request signal) received from the position control ECU assembly (driver seat) are interrupted for 10 seconds or more. | -
CAN communication system
-
Position control ECU assembly (Driver seat)
|
PROCEDURE
| 1. | GO TO CAN COMMUNICATION SYSTEM |
(a) Go to CAN Communication System.
Click here
| NEXT | | END |
READ NEXT:
DESCRIPTION Different voltage values are sent to the multiplex tilt and telescopic ECU by operating the tilt and telescopic switch. The multiplex tilt and telescopic ECU then judges which motor and in
DESCRIPTION When the power switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
SEE MORE:
Replace the battery with a new one
if it is depleted.
■If the electronic key battery is depleted
The following symptoms may occur:
The smart access system with push-button
start and wireless remote control will
not function properly.
The operational range will be reduced.
Items to
REASSEMBLY PROCEDURE 1. INSTALL STEERING LOCK ACTUATOR ASSEMBLY NOTICE: After replacing the steering lock actuator assembly, perform registration. (a) Secure the steering column assembly in a vise between aluminum plates. NOTICE: Do not overtighten the vise. (b) Temporarily install the steering lock
© 2016-2025 Copyright www.lexguide.net
