Brakes - Procedure for ALB Code 1 (Leaking Solenoid): Overview

90acura01
YEAR MOOEL VIN APPLICATION
'87 - 90 LEGEND ALL
L and LS
March 12, 1990

BULLETIN NO

89-022
ALB Problem Code 1/Leaking Solenoid (Supersedes 89-022, dated September 25, 1989)

NOTE: The "Solenoid Flushing" and "Solenoid Replacement" procedures (see page 2) are new, along with other new information.

SYMPTOM

The ALB warning light comes on and the ALB control unit indicates Problem Code 1. In some cases, the top of the ALB modulator reservoir may be wet with brake fluid.

NOTE:
^ This bulletin addresses a possible cause for ALB Problem Code 1 that is not covered in the service manual.

^ The LED on the ALB control unit (located in the trunk) displays problem codes once, each time the ignition switch is turned on. The code appears 10 seconds after the ignition switch is turned on. Have an assistant turn the ignition switch on while you watch the LED.

PROBABLE CAUSE

A leaking modulator solenoid that prevents the pump from pressurizing the accumulator to the prescribed level within the pump running limit of 120 seconds.

CORRECTIVE ACTION

Perform a solenoid leak check and, if necessary, flush or replace the solenoids.