Page 492 - 2019 SHOP MANUAL CRF1000/A/D

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ANTI-LOCK BRAKE SYSTEM (ABS) (CRF1000A/D)
DTC READOUT

• The DTC is not erased by turning the ignition switch to OFF while the DTC is being output. Note that turning the ignition switch
ON again does not indicate the DTC. To show the DTC again, repeat the DTC readout procedures from the beginning.
• Be sure to record the indicated DTC.
• After diagnostic troubleshooting, erase the DTC and perform the pre-start self-diagnosis procedure to be sure that there is no
problem in the ABS (page 20-5).
• Do not apply the brake during DTC readout.
Connect the MCS to the DLC (page 4-6).
Read the DTC, stored data and follow the DTC index (page 20-8).
If the MCS is not available, perform the following.
Reading DTC with the ABS indicator
1. Turn the ignition switch OFF.
Remove the main seat (page 2-4).
Connect the SCS connector to the DLC (page 4-6).
2. Turn the ignition switch ON and engine stop switch " ".
The ABS indicator should come on for 2 seconds (start signal), then goes off for 3.6 seconds and starts DTC indication.
The DTC is indicated by the number of the times of the ABS indicator blinking.
If the DTC is not stored, the ABS indicator stays on.
3. Turn the ignition switch OFF and disconnect the SCS connector.
Install the removed parts in the reverse order of removal.
DTC INDICATION PATTERN

• The ABS indicator indicates the DTC by blinking a specified number of times.
The indicator has two types of blinking, a long blink and short blink. The long blink lasts for 1.3 seconds, the short blink lasts for
0.3 seconds. For example, when one long blink is followed by two short blinks, the DTC is 1-2 (one long blink = 1 blink, plus two
short blinks = 2 blinks).
• When the ABS control unit stores some DTCs, the ABS indicator shows the DTCs in the order from the lowest number to highest
number. For example, when the ABS indicator indicates code 1-2, then indicates code 2-3, two failures have occurred.

IGNITION ON 1.3 sec.
SWITCH OFF
1.3 sec. 1.3 sec. Pattern repeated
2 sec. 0.3 sec.
ABS ON 3.6 sec.
INDICATOR OFF
DTC start signal
0.4 sec. 3.6 sec. 0.5 sec.
Lowest number DTC Highest number DTC
(Example: Code 1-2) (Example: Code 2-3)

When the DTC is not stored:

2 sec. 3.6 sec.
ABS ON
INDICATOR OFF
ERASING STORED DTC

• The stored DTC can not be erased by simply disconnecting the battery negative (–) cable.
Connect the MCS to the DLC (page 4-6).
Erase the DTC with the MCS while the engine is stopped.
To erase the DTC without MCS, refer to the following procedure.
20-6