ENGINE CONTROLS 1F–275
DAEWOO M-150 BL2
DTC P0656 – Fuel Level Gauge Circuit Fault
Step Action Value(s) Yes No
1
Perform an On-Board Diagnostic (EOBD) System
Check.
Is the system check complete?
–
Go to Step 2
Go to
“On-Board
Diagnostic
System Check”
2
1. Turn the ignition switch to LOCK.
2. connect the scan tool to the DLC.
3. Turn the Turn the ignition switch to ON.
Are any Diagnostic Trouble Codes (DTCs)
displayed?
–
Go to Step 3
Try with
another scan
tool
3
Refer to the applicable DTC table. Start with the
DTC with the lowest numerical value and move up.
Is the DTC identified as valid trouble code P0656?
–
Go to Step 4
Go to
applicable DTC
table
4
1. Disconnect the cluster connector
2. Turn the ignition switch to LOCK.
3. Check for an open or short to ground in the wire
between the cluster connector terminal C14 and
ground.
Is the problem found?
–
Go to Step 6 Go to Step 5
5
1. Turn the ignition switch to LOCK.
2. Check for short to battery in the wire between the
the cluster connector terminal C14 and ground.
Is the problem found?
–
Go to Step 6 Go to Step 7
6
1. Change the between cluster and ECM or repair
the connector terminal as needed.
2. Clear any DTCs from ECM.
3. Perform the diagnostic system check.
Is the repair complete?
–
System OK
–
7
1. Replace the cluster.
2. Clear any DTCs from ECM.
3. Perform the diagnostic system check.
Are any Diagnostic Trouble Codes (DTCs)
displayed?
–
Go to Step 8 System OK
8
Replace the ECM.
Is the replcement complete?
–
Go to Step 9
–
9
1. Using the scan tool, clear the Diagnostic Trouble
Codes(DTCs)
2. Start the engine and idle at normal operating
temperature.
3. Operate the vehicle within the conditions for
setting this DTC as specified in the supporting
text.
Does the scan tool indicate that this diagnostic has
run and passed?
–
Go to Step 10 Go to Step 2
10
Check if any additional DTCs are set.
Are any DTCs displayed that that have not been
diagnosed?
–
Go to
applicable DTC
table System OK
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