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B3 EV DRIVER KO
Condition for error detection
It is referred to the
5th
way.
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)
B4 WATCHDOG
Condition for error detection
The test is made in both running and standby. It is a self-diagnosing test within the logic.
• Replace the logic unit.
B5 EVP DRIVER SHORTED
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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