227
This fault is related to safety critical inputs that come in on two input terminals. A fault occurs
when one input is on and the other is off.
Mismatch on MR input pair
Check for wiring mistakes on the inputs terminals.
Check for plug-in terminal blocks on SRU board that might be defective.
Verify input LEDs go on and off together. If LEDs do go on and off together, check SRU board
for metal shavings or anything that might be grounding or shorting the components on the
board.
Replace SRU board.
This fault is related to safety critical inputs that come in on two input terminals. A fault occurs
when one input is on and the other is off.
Mismatch on CT input pair
Check for wiring mistakes on the inputs terminals.
Check for plug-in terminal blocks on SRU board that might be defective.
Verify input LEDs go on and off together. If LEDs do go on and off together, check SRU board
for metal shavings or anything that might be grounding or shorting the components on the
board.
Replace SRU board.
This fault is related to safety critical inputs that come in on two input terminals. A fault occurs
when one input is on and the other is off.
Mismatch on CT input pair or controller was configured for In-car Inspection but car does not
have IC Inspection key switch.
Check for wiring mistakes on the inputs terminals.
Check for plug-in terminal blocks on SRU board that might be defective.
Verify input LEDs go on and off together. If LEDs do go on and off together, check SRU board
for metal shavings or anything that might be grounding or shorting the components on the
board.
Replace SRU board.
For fault F32 only, if car does not have an In-car Inspection key switch then set parameter 00-
004 = x51 to disable this feature.
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