Dtc P1393 G Sensor Rough Road High Voltage - Daewoo CIELO EURO III Manual

Step
Perform an On-Board Diagnostic (EOBD) System
Check.
1
Is the system check complete?
1. Idle the engine.
2. Observe the ROUGH ROAD value displayed on
2 the scan tool.
Is the ROUGH ROAD value near the specified val-
ue?
1. Turn the ignition ON, engine OFF.
2. Review and record the scan tool Failure Records
data.
3. Operate the vehicle within Failure Records
3
conditions as noted.
4. Using the scan tool, monitor specific Diagnostic
Trouble Code (DTC) info for DTC P1393.
Does the scan tool indicate that DTC P1393 failed?
1. Disconnect the G sensor electrical connector.
2. Note the G sensor voltage displayed on the scan
4
tool.
Is the G sensor voltage near the specified value?
Probe the sensor ground circuit terminal 3 with a
5 test light to B+.
Is the test light ON?
1. Check the G sensor signal circuit for a short to
voltage or a short to the 5 volt reference circuit.
6 2. If the G sensor signal circuit is shorted, repair the
circuit as necessary.
Is the G sensor signal circuit shorted?
1. Check for a poor sensor ground terminal
connection at the G sensor electrical connector.
7
2. If a problem is found replace the faulty terminal.
Did the terminal require replacement?
Check for a poor sensor ground terminal connection
at the engine con-
8 trol module (ECM) and replace the terminal if neces-
sary.
Does the terminal require replacement?
1. Check the continuity of the G sensor ground
circuit.
2. If the G sensor ground circuit measures over the
9
specified value, repair the open or poor
connection.
Is a condition found and corrected?
1. Turn the ignition OFF.
10
2. Replace the ECM
Is the repair complete?
1. Turn the ignition OFF.
11 2. Replace the G sensor.
Is the repair complete?
DAEWOO T-154 BL2,3
DTC P1393 – G Sensor Rough Road High Voltage
Action
ENGINE CONTROLS 1F – 289
Value Yes
–
Go to Step 2
4.5 v Go to Step 4
–
Go to Step 4
0.0 v Go to Step 5
–
Go to Step 7
–
Go to Step 12
–
Go to Step 12
–
Go to Step 12
–
Go to Step 12
–
Go to Step 12
–
Go to Step 12
No
Go to "On-
Board Diag-
nostic System
Check"
Go to Step 3
Go to "Diag-
nostic Aids"
Go to Step 6
Go to Step 9
Go to Step 10
Go to Step 11
Go to Step 10
Go to Step 8
–
Go to Step 10