C0495

DTC C0495





Test 1-6





Test 7-10

Circuit Description
The Body Control Module (BCM), or Electronic Suspension Control (ESC) Module, vehicles equipped with Real Time Damping (RTD), provides a Pulse Width Modulated (PWM) supply circuit, and a control circuit to the Electronic Variable Orifice (EVO) solenoid. The supply circuit is used to regulate the current to the solenoid which controls the size of the power steering pump's output fluid orifice, depending on vehicle speed. This results in an increase or decrease in steering effort. The control circuit is used to disable the EVO outputs to provide full steering assist when a malfunction is detected.

Conditions for Running the DTC
Vehicle speed greater than 8 km/h (5 mph).
EVO solenoid command greater than 5 percent PWM duty cycle.

Conditions for Setting the DTC
^ EVO output PWM less than 10 percent duty cycle and EVO output current greater than 260 ma.
^ EVO output PWM greater than 94 percent duty cycle and EVO output current less than or equal to 360 ma.

Action Taken When the DTC Sets
^ DTC C0495 will be stored in memory.
^ The EVO outputs will be disabled for the remainder of the ignition cycle.

Conditions for Clearing the MIL/DTC
^ A current DTC will clear on next ignition cycle with no malfunction present.
^ A history DTC will clear after 100 consecutive malfunction free ignition cycles.
^ Using the scan tool

Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Tests the EVO solenoid circuits in there active state using the scan tool.
3. Tests if the resistance of the EVO solenoid is within the specified range.
5. Tests if the EVO solenoid supply circuit is shorted to voltage inside the control module.
6. Tests if the EVO solenoid supply circuit is shorted to voltage
9. Program the BCM/ESC Module after replacement