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L9634

Table 22. Diagnostic Fault-bit Definition

4.31 Resistance Measurement Registers

OSD has 8 independent resistance measurement registers. The resistance measurement registers is de-

fined as shown in the table.

Table 23. ADC Resistance Measurement Register

ADC resistance measurement registers contain the measurement results of each of the OSD deployment

channels. The channel number is determined by the address bit in diagnostic command (see Address bit

definition table 13)

D6/D2

D5/D1

D4/D0

Description

0

0

0

No Fault

0

0

1

Short Between Loops

0

1

0

Short to Battery

0

1

1

Open Fault

1

0

0

Short to Ground

10

1

Low Side MOS Fault

1

1

0

High Side MOS Fault

1

1

1

Loss of Ground Fault

Bit

Description

D7

8-bit ADC Resistance Measurement Result

D6

D5

D4

D3

D2

D1

D0

Obsolete

Product(s)

- Obsolete

Product(s)