Instrument Pack ABS Warning Lamp

Instrument Pack ABS Warning Lamp

The ABS ECU (C0504) provides a feed to the instrument pack mounted ABS warning lamp (C0230) on an RS wire. The ABS ECU illuminates the warning lamp under the following conditions:

A bulb check when the ignition is switched on. The ABS ECU illuminates the lamp for 0.3 seconds. If vehicle speed remains under 7 kph (4.3 mph) after the ignition has been switched on. When vehicle speed is greater than 7 kph, the ABS ECU will extinguish the lamp. If a fault has been stored in the ABS ECU memory.

TC Lamp

The ABS ECU (C0504) provides a feed to the instrument pack mounted TC lamp (C0230) on a YS wire. The ABS ECU illuminates the lamp under the following conditions:

A bulb check when the ignition is switched on. The ABS ECU illuminates the lamp for 0.3 seconds. For a minimum of 2 seconds if TC is active. If a TC fault is detected by the ABS ECU.

NOTE: The TC lamp may also illuminate if an ABS fault is detected.

Brake Warning Lamp

The ABS ECU (C0504) provides a feed to the instrument pack mounted brake warning lamp (C0230) on a BW wire. The ABS ECU illuminates the lamp under the following conditions:

A bulb check when the ignition is switched on. The ABS ECU illuminates the lamp for 3 seconds. If an EBD fault is detected by the ABS ECU.

The brake warning lamp will also illuminate if the handbrake is applied, or the brake fluid level is low. The handbrake switch (C0091) is connected to the brake warning lamp (C0230) by a WY then BW wire. The brake fluid level switch (C1725 on LHD, C0026 on RHD) is connected to the brake warning lamp (C0230) by a BW wire.

Diagnostic Socket

The ABS ECU can be interrogated using TestBook via the diagnostic socket. The diagnostic socket (C0040) is located on the centre console, and is connected to the ABS ECU (C0504) by a K wire.