Dtc P0562 System Voltage (Engine Side) Too Low - Daewoo CIELO EURO III Manual

Diagnostic Aids
If the DTC sets when an accessory is operated, check
for a poor connection or excessive current draw.
Any circuitry, that is suspected as causing the intermit-
tent complaint, should be thoroughly checked for the fol-
lowing conditions:
D Backed-out terminals
D Improper mating
D Broken locks
D Improperly formed
D Damaged terminals
D Poor terminal-to-wiring connections
D Physical damage to the wiring harness
Test Description
Number(s) below refer to the step number(s) on the
Diagnostic Table.
Step
Perform an On-Board Diagnostic (EOBD) System
Check.
1
Is the system check complete?
1. Install a scan tool and clear the Diagnostic
Trouble Codes (DTCs).
2. Start the engine and raise the engine speed to
the specified value.
2
3. Load the electrical system by turning on the
headlights, high blower motor, etc.
Is the ignition voltage less than the specified value?
1. With the engine still running at the specified
value.
2. Using a Digital Voltmeter (DVM), measure the
3
battery voltage at the battery.
Is the battery voltage greater than the specified val-
ue?
1. Turn the ignition switch OFF.
2. Disconnect the
engine control module (ECM) connector at
the ECM.
4 3. Turn the ignition switch ON with the engine OFF.
4. Using a DVM, measure the ignition voltage at the
ignition feed circuit, terminal K18.
Is the ignition voltage greater than the specified val-
ue?
Check for a malfunctioning connection at the
ECM harness terminals and repair as necessary.
5
Is a repair necessary?
DAEWOO T-154 BL2,3

DTC P0562 System Voltage (Engine Side) Too Low

Action
ENGINE CONTROLS 1F – 349
1. The On-Board Diagnostic (EOBD) System Check
prompts the technician to complete some basic
checks and store the freeze frame and failure re-
cords data on the scan tool if applicable. This
creates an electronic copy of the data taken when
the malfunction occurred. The information is then
stored on the scan tool for later reference.
2. This checks if the generator is malfunctioning under
load conditions.
4. Checks the ignition feed circuit for excessive resist-
ance. An open circuit will cause a no start condition.
7. The replacement ECM must be repro-
grammed. Refer to the latest Techline procedure for
ECM reprogramming.
9. If no malfunctions have been found at this point and
no additional DTCs were set, refer to "Diagnostic
Aids" in this section for additional checks and infor-
mation.
Value
–
Go to Step 2
1400 rpm
Go to Step 3
10 v
1400 rpm
Go to Step 4
12 v
10 v Go to Step 5
–
Go to Step 8
Yes No
Go to
"On-Board
Diagnostic
System Check"
Go to Step 8
Go to "Diag-
nostic Aids"
Go to Step 6
Go to Step 7