Notes On INTERMITTENTS

Because Road Sensing Suspension (RSS) module performs a test for different failures under different driving conditions, it is often necessary to test drive vehicle to cause the failure to occur again and allow a code to set. If failure does not occur again during test drive, a good description of vehicle behavior may be helpful in determining which component or circuit is faulty.

Most intermittent problems are caused by faulty electrical connections or wiring. Check for the following conditions:

• Poor mating of connector halves.
• Terminals not fully seated in connector body.
• Improperly formed or damaged terminals (carefully reform all connector terminals in a problem circuit to increase contact tension).
• Poor terminal-to-wire connection (requires removing terminal from connector body to inspect).

Most of the time, if RSS system detects a fault but the fault clears before the ignition is turned off, the RSS function will not be disabled. Some failures will disable RSS function for the entire ignition cycle, even if the fault clears before the ignition is turned off.

When a fault occurs, the SERVICE RIDE CONTROL message should come on and remain on until the ignition is turned off and then on again. The following conditions may cause the SERVICE RIDE CONTROL message to be displayed intermittently:

• An interruption of power to RSS module (check wiring and fuses).
• Incorrect voltage of power supply circuits (battery or ignition) to RSS module. Voltage must be greater than 10.3 volts or less than 16.0 volts. This condition prevents the RSS module from logging codes and displaying the SERVICE RIDE CONTROL message. If this condition occurs while driving, system will not operate normally. When normal voltage is restored, system will operate normally (check charging system).