TM 5-3805-294-23-1
0052
Table 1. DTC 636.02 - High-Pressure Fuel Pump Position Signal Invalid - Continued.
Test or Inspection
Corrective Action
Malfunction
4.
Reconnect negative battery
cable. (Volume 4, WP 0521)
5.
Reconnect ECU connectors
J01, J02, J03, (Volume 4,
WP 0508) and engine wiring
harness connector X02
(Volume 5, WP 0800, Figure
83).
6.
Turn key switch to ON position;
START ENGINE (TM
5-3805-294-10). (Volume 5,
WP 0794)
7.
Refresh DTCs. (Volume 3,
WP 0362) Note if DTC 636.02
is an active DTC.
8.
Shut down engine and turn key
1.
If DTC 636.02 is an active
switch to OFF position (TM
DTC, proceed to Malfunction
5-3805-294-10). (Volume 5,
19.
WP 0794)
If DTC is not an active DTC,
2.
replace alternator. (Volume 3,
WP 0402) Restore machine to
original condition and perform
Harness Diagnostic Mode
Test. (Volume 3, WP 0345)
Verify if high-pressure fuel
1.
If sensor was replaced,
19.
Replace High-
pump position sensor was
proceed to Malfunction 20.
Pressure Fuel
replaced during this
Pump Position
2.
If sensor was not replaced,
troubleshooting procedure.
Sensor.
replace high-pressure fuel
pump position sensor.
(Volume 3, WP 0435) Restore
machine to original condition
and perform Harness
Diagnostic Mode Test.
(Volume 3, WP 0345)
1.
Disconnect negative battery
20.
ECU Faulty.
cable. (Volume 4, WP 0521)
2.
Reconnect alternator positive
output cable. (Volume 3,
WP 0402)
0052-8