The EHS pump control output (PWM_OUT_3) is either overloaded or short circuit to ground.
â–¶ How to fix
• Check connectors and wiring running from the servo pump.
What you'll see
No driver-visible symptom recorded.
System reaction
• The electro hydraulic steering pump will always be set to active. • Not possible to detect flow sensor malfunction.
Diagnostic depth
Detection
The DTC is set active if the PWM output duty cycle is 0% for 1000 ms. The DTC shall be set to inactive if the PWM output duty cycle is > 0% for 500 ms. The DTC is not set in the following cases: • system voltage is below 22V • system voltage is above 32V
Possible cause
• Defect wiring (short circuit to ground). • Defect connectors.