DSM.0008 Ver 1.0
FCCC MT-45 / MT 55 CNG Diagnostics Service Manual
February 15, 2022
P
RINTED AND
D
OWNLOADED
C
OPIES ARE
N
OT
C
ONTROLLED
FCCC MT CNG
33
FCCC MT CNG
DSM.0008 Ver 1.0
FCCC MT-45 / MT 55 CNG Diagnostics Service Manual
February 24, 2022
P
RINTED AND
D
OWNLOADED
C
OPIES ARE
N
OT
C
ONTROLLED
33
Step 16
With connector
ECM
connector
C1
still disconnected.
Ignition
ON, within 30 seconds
, measure voltage between
C1 Terminal 6
(Pink) and
Terminal 16
(Black).
Voltage equal to battery voltage:
Repair high resistance in circuit 204
between C1 Terminal 8 and Splice 3.
Refer to DSM.0036.
Perform System Verification Procedure.
Voltage not equal to battery voltage:
Proceed to Step 17.
Step 17
Ignition
OFF
, disconnect
Y41
connector.
Ignition
ON
,
within 30 seconds
, measure voltage between connector
Y41 Terminal 1
(Pink) and
Terminal 2
(Black).
Voltage is equal to battery voltage:
Repair the open on the circuit 204
between Splice 2 and 3. Refer to
DSM.0036.
Perform System Verification Procedure.
Voltage is not equal to battery voltage:
Repair the open on circuit 204 between F78
and Splice 2
.
Refer to DSM.0036.
Perform System Verification Procedure.
Fuel Gauge Non-operation
9
2
7
6
3
8
10
14 15
16
DMM
V
2
1
DMM
V