ATTS Function Test

Perform the function test whenever the ATTS control unit or any ATTS system component has been replaced.

CAUTION: Rotate the front wheels only with the engine. If you rotate only one front wheel by something other than the engine, the ATTS unit will be damaged.

NOTE: The ATTS function test can also be done with the Honda PGM Tester.

1. Connect the SOS service connector to the service check connector (2P) located on the right side of the center console.
2. Raise the front of vehicle, and support it with safety stands in the proper locations (see section 1).
3. Start the engine, then shift the transmission to reverse position.
4. Accelerate to 6 mph (10 km/h).
5. Shift the transmission to neutral position, and apply the foot brake to gently decelerate to 0 mph 10 km/h), then pull the parking brake lever up within 10 seconds.
6. The ATTS indicator light starts blinking.
7. Shift the transmission to low, and gently accelerate to 12 mph (20 km/h) within 10 seconds, then the ATTS control unit shifts to test mode.
8. You should feel vibration twice on the steering wheel, then the indicator light goes off.

NOTE:
- If the indicator light stays on, verify the DTC.
- If the indicator light continues blinking, repeat steps 2 through 8.
- DTC 67 and 68 are detected only in the ATTS function test.
- DTC 67 is detected when the difference of right and left wheels is less than 0.6 mph (1 km/h) during left side oil pressure output.
- DTC 68 is detected when the difference of right and left wheels is less than 0.6 mph (1 km/h) during right side oil pressure output.

9. Turn the ignition switch OFF, and disconnect the SOS service connector.