7–107
62-11640
22101
SENSOR INPUT VOLTAGE LOW INP1
NOTE
This alarm is an indication that there is a short in the transducer or DC current transformer wiring and
the voltage supply in the main microprocessor is overloaded.
• ACTIVATION: Voltage from main microprocessor to the components is less than 4.5 VDC
• UNIT CONTROL: Engine and Electric Operation: Alarm only.
• RESET CONDITION: Auto reset when voltage is correct, alarm reset or alarm may be manually reset by
turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (Refer to Note 1 in
Section, page 7-2.) Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1.
Check System Pressures
Install manifold gauge set and check and compare compressor discharge, evaporator outlet & suction
pressures with those shown in Unit Data. Refer to
for instruction on comparison.
2.
Check Wiring
If a transducer reading is not within a reasonable range of gauge reading, check wires to sensors for
short
For CSP, check wiring from 2MM
−
20, 2MM
−
30 and 2MM
−
9.
For EVOP, check wiring from 2MM
−
25, SP
−
20 and 2MM
−
17.
For CDP, check wiring from 2MM
−
21, SP
−
20 and 2MM
−
10.
For ECOP, check wiring from 2MM
−
28, SP
−
20 and 2MM
−
14.
3.
Check CT Wiring
Check wires to sensor for short. Check wiring from 2MM
−
29, 2MM
−
12 and 2MM
−
23 to PCM.
4.
Replace Main Microprocessor
Download data and replace main microprocessor. For complete Main Microprocessor Module replace-
ment instructions refer to
.
Summary of Contents for Vector 8500
Page 23: ...62 11640 1 6 1 3 SAFETY DECALS ...
Page 24: ...1 7 62 11640 62 03958 ...
Page 25: ...62 11640 1 8 ...
Page 26: ...1 9 62 11640 ...
Page 27: ...62 11640 1 10 ...
Page 125: ...62 11640 SECTION 6 MESSAGECENTER PARAGRAPH NUMBER Page 6 1 MESSAGECENTER MESSAGES 6 1 ...
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