Lexus ES manuals

Lexus ES: Lost Communication with Body Control Module "B" Missing Message (U014287,U015587,U020887)

Lexus ES (XZ10) Service Manual / Steering / Steering Column / Power Tilt And Power Telescopic Steering Column System(for Gasoline Model) / 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:

 Tilt and Telescopic Manual Switch Circuit

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

 IG Power Source Circuit

DESCRIPTION When the engine 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

 Steering Column Assembly (for Manual Tilt And Manual Telescopic Steering Column)

SEE MORE:

 Components

COMPONENTS ILLUSTRATION *A for HV Model *B for Gasoline Model *1 RADIO SETTING CONDENSER *2 REAR DOOR SCUFF PLATE LH *3 REAR SEAT SIDE GARNISH LH *4 ROOF SIDE INNER GARNISH ASSEMBLY LH *5 CLIP - - ● Non-reusable part - -

 Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for G

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