12
Test Procedures
TROUBLESHOOTING AND ELECTRICAL
SYSTEM: DIESEL VEHICLES
TEST PROCEDURE 32 – Fuel Gauge
See General Warnings, Section 1, Page 1-2.
NOTE:
Keep the battery connected during this test procedure.
1
2
6
4
7
1. Black(Jumper Wire From 6) 2. Blue 4. Orange 6. Black 7. White
480
Figure 12-34
Fuel Gauge/Hour Meter
1.
Disable the vehicle.
See Disabling the Vehicle on page 1-3.
2.
Raise the hood.
3.
Disconnect the orange wire (w104) from the fuel gauge/hour meter
.
4.
Set a multimeter to 20 volts DC and place the red (+) probe on the positive (+) post of the battery. Place the black
(–) probe on the negative (–) post of the battery. Record the voltage reading.
5.
Set a multimeter to 20 volts DC and place the red (+) probe on the (2) terminal of the fuel gauge/hour meter
where the blue wire (w25) is connected. Place the black (–) probe on the (1) terminal of the fuel gauge/hour meter
with the black wire (w22)
6.
Turn the key switch ON. The voltage reading should be the same as the battery voltage reading recorded earlier.
If not, check the continuity of the blue and black wires
.
7.
The orange wire should remain disconnected for this step. Place the black probe of the multimeter on the (1)
terminal of the fuel gauge/hour meter and place the red (+) probe on the (4) terminal of the fuel gauge/hour
meter
. The voltage reading should be approximately 4.94 volts. If the reading is
incorrect, replace the fuel gauge/hour meter.
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
1
4
2
6
7
1
4
5
3
2
1. 20 VDC Setting 2. Orange 3. Black 4. White 5. Blue
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
1
4
2
6
7
1
2
1. 20 VDC Setting 2. Orange
481
Figure 12-35
Fuel Gauge Voltage Test - Terminal 2
482
Figure 12-36
Fuel Gauge Voltage Test - Terminal 4
Page 12-38
2013 Carryall 295/XRT 1550 Maintenance and Service Manual
Summary of Contents for Carryall XRT 1550
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