Unexpected Pedal Action

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WARNING LAMP ACTIVATION
Make sure warning lamp remains off while driving.

OK or NG

OK: GO TO 2.

NG: Carry out self-diagnosis. Refer to "SELF-DIAGNOSIS ".
CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.

Fig 1: Checking Brake Pedal Stroke
Courtesy of NISSAN MOTOR CO., U.S.A.

Is pedal stroke excessive?

YES: Perform Basic Inspection. Refer to "BASIC INSPECTION ".

NO: GO TO 3.
CHECK CONNECTOR AND BRAKING PERFORMANCE
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check brake effectiveness.
NOTE: Driving the vehicle with the ABS actuator and electric unit (control unit) disconnected may induce DTCs in electrical control units using CAN communication. After the inspection, clear all DTCs. Refer to "SYSTEM DESCRIPTION ".

OK or NG

OK: GO TO 4.

NG: Perform Basic Inspection. Refer to "BASIC INSPECTION ".
CHECK WHEEL SENSORS
Check the following.
- Wheel sensor mounting for looseness
- Wheel sensors for physical damage
- Wheel sensor connectors for terminal damage or loose connections
OK or NG

OK: Check ABS actuator and electric unit (control unit) pin terminals for damage and the connection of harness connector. Reconnect ABS actuator and electric unit (control unit) harness connector. Then retest.

NG: Repair as necessary.