Verona L6-2.5L (2005)
Solenoid Relay
The solenoid relay, provides power to the pump motor and solenoids. The switch in the relay is normally open, but is commanded to close during
initialization. The relay switch will remain closed for the remainder of the drive cycle as long as no DTCs (Diagnostic Trouble Codes) set which
required the switch to open. If a DTC sets which requires the relay to be commanded off, battery voltage will be removed from the pump motor and
solenoids for the remainder of the current drive cycle and ABS cannot function. The relay is an integral part of the EBCM and cannot be serviced
separately.
Wheel Speed Sensors and Rings
A wheel speed sensor is present at each wheel. The sensors transmit wheel speed information to the EBCM by means of a small AC voltage. The
signal is transmitted to the EBCM through interface that can cause false or noisy wheel speed sensor input to the EBCM.
ABS Warning Lamp (Amber) Description
The ABS warning lamp is located in the instrument cluster and will illuminate if a malfunction in the ABS is detected by the EBCM. The ABS
warning lamp informs the driver that a condition exists which results in turning off the antilock brake function. If only the ABS is warning lamp is on,
normal braking with full power assist is available. Conditions for the ABS warning lamp to turn on are as follows.
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ABS malfunction detected. As previously described, the ABS warning lamp turns on when a problem has been found in the ABS.
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Instrument panel cluster bulb check. When the ignition is turned to ON, the ABS warning lamp will turn on for approximately three seconds and
then turn off.
Brake Warning Lamp (Red) Description
The red brake warning lamp is in the instrument cluster and will illuminate to warn the abnormal condition in the brake system, which may result in
reduced braking ability. The lamp will illuminate when the parking brake is applied or not fully released, or if the brake fluid level switch is closed
(when the brake fluid is low in the master cylinder reservoir). When the brake fluid level switch is closed (low condition) a brake warning lamp will
stay illuminated until the condition has been repaired. Also some failure modes in MGH-25 system will illuminate the lamp to let the drivers know
DDRP (De-coupled Dynamic Rear Proportioning) is disabled.
