How to Troubleshoot the ABS

ABS Indicator



To determine the actual cause of the problem, question the customer about the problem, taking these conditions into consideration.


Brake System Indicator


The brake system indicator in the gauge assembly will come on under these conditions:

Diagnostic Trouble Code (DTC)



Self-diagnosis



Kickback


The pump motor operates when the ABS is functioning, and the fluid in the reservoir is forced out to the master cylinder, causing kickback at the brake pedal.

Pump Motor


How to Troubleshoot DTCs


The troubleshooting flowchart procedures assume that the cause of the problem is still present, and the ABS indicator and possibly the brake system indicator are still on. Following the flowchart when the ABS indicator does not come on can result in incorrect diagnosis.
The connector illustrations show the female terminal connectors with a single outline and the male terminal connectors with a double outline.

1.Question the customer about the conditions when the problem occured, and try to reproduce the same conditions for troubleshooting. Find out when the ABS indicator and possibly the brake system indicator came on, such as during ABS control, after ABS control, when the vehicle was at a certain speed, etc.

2.When the ABS indicator and possibly the brake system indicator does not come on during the test-drive, but troubleshooting is done based on the DTC, check for loose connectors, poor terminal contact, etc., before you start troubleshooting.

3.After troubleshooting, clear the DTC, and test-drive the vehicle. Make sure the ABS indicator and possibly the brake system indicator does not come on.

How to Retrieve DTCs


1.With the ignition switch OFF, connect the Honda Diagnostic System (HDS) to the 16P data link connector (DLC) (A) under the driver's side of the dashboard next to the accelerator pedal.

 

2.Turn the ignition switch ON (II), and follow the prompts on the HDS to display the ABS DTC(s) on the screen. After determining the DTC, refer to the ABS DTC Troubleshooting.

NOTE: See the HDS help menu for specific instructions.

How to Clear DTCs


1.With the ignition switch OFF, connect the HDS to the 16P data link connector (DLC) (A) under the driver's side of the dashboard next to the accelerator pedal.

 

2.Turn the ignition switch ON (II), and clear the DTC(s) by following the screen prompts on the HDS.

NOTE: See the HDS help menu for specific instructions.