7–51
62-11640
00114
CHECK LIV CIRCUIT
• ACTIVATION: A problem has been detected in the LIV coil circuit. If this alarm is activated while the con-
trol system is calling for LIV to be energized, the circuit is detected shorted. If this alarm is activated at
any other time, the circuit is detected open.
• UNIT CONTROL: Engine and Electric Operation: Alarm only.
• RESET CONDITION: Auto Reset when the LIV coil current draw is normal, or alarm may be manually
reset via keypad or 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, the active
alarm should clear itself (refer to reset condition above). 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 Coil Wiring
Inspect coil & connector pins & terminals. (See wiring schematic
.) Verify there is no
physical damage to the coil. Verify there is no damage, moisture or corroded pins in plug.
2.
Check Current Draw
a. Use Component Test Mode to test actual current draw of the circuit. (Refer to
.) View
current draw in Component Test Mode screen. Refer to
for normal current values.
b. Check for voltage at the coil plug between pins A (+) and B (ground). Voltage should be approxi-
mately12VDC.
3.
Check Coil
Check coil resistance. View current draw in Data List. Refer to
4.
Check Circuits With Another Coil
Substitute known good coil and clear alarm. Start unit, run for 30 seconds. If alarm does not reoccur,
replace failed coil.
00121
CHECK AMBIENT AIR SENSOR
• ACTIVATION: Ambient Air Temperature Sensor (ATA) is not within range of -53 to +158°F (-47° to +70° C).
• UNIT CONTROL: Engine and Electric Operation: A value of 122°F (50°C) will be used for any calculations.
• RESET CONDITION: Auto reset when sensor is in range or alarm may be manually reset using the dis-
play mounted keys or 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, the active
alarm should clear itself (refer to reset condition above). 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 Sensor
a. Inspect sensor & connector. No damage to sensor. No damage, moisture, or corrosion in connector.
b. Check sensor resistance. (Refer to Note 3 in
Section, page 7-2.) 10,000 Ohms @ 77°F
for chart of resistances for different sensors.
2.
Check Sensor Wiring
a. Inspect connector pins & terminals at sensor and connector 2MM. (See wiring schematic
.) Verify there is no physical damage to harness, and no damage, moisture, or corrosion in
connectors.
b. Place the system in PC Mode. Refer to Note 2 in
Section, page 7-2. Disconnect sensor
from harness. Check for 3.0 ± 0.1 VDC at harness plug between pins. Voltage should be 3.0 ± 0.1
VDC volts at harness plug between pins. This verifies microprocessor.
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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