B62-63: From B18: Control Pressure Too Low

From B18: Control pressure too low (warm control pressure regulator)
When the fault has been rectified proceed with B19 B14-24: Checking All Pressures

B62



Check for voltage at the control pressure regulator
Measure across both the plug pins.

Voltage: measure the regulator resistance
10-20 ohm : regulator ...079 (USA 1981-)
20-30 ohm : others.

If the resistance is correct,the fault is due to a poor contact between the regulator and plug.

B63



Check for voltage between the plug and earth / ground
Voltage: open circuit in lead to earth.

No voltage: open circuit in lead between pump relay and control pressure regulator.