CESAB B 215 - Page 199

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B0 COIL SHORTED
Condition for error detection
Problem in the
5th
way hardware circuit.
Check:
• Wiring harness continuity
• Presence of false contacts on connectors on the MHYRIO and solenoid valve sides
• State of coils EV9 and EV10
• Replace the logic unit.
Reference wiring diagram page 4/7 (chapter 17, section WIRING DIAGRAMS)
B1 UNDER VOLTAGE
Condition for error detection
This fault is signaled if an undervoltage condition is detected in the MHYRIO power supply.
• Connector J140 pins 1 and 2 = +Vb
Reference wiring diagram page 4/7 (chapter 17, section WIRING DIAGRAMS)
B2 EVP DRIVER KO
Condition for error detection
It is referred to the drain valve EVP.
Check:
• Wiring harness continuity
• Presence of false contacts on connectors on the MHYRIO and solenoid valve sides
• State of coil EVP (standard 18 ohm)
• Replace the logic unit.
Reference wiring diagram page 4/7 (chapter 17, section WIRING DIAGRAMS)
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