P0563

BATTERY VOLTAGE





Fault Symptoms
None

Conditions.
P0562
Battery voltage below 10 V for longer than 60 seconds after starting.

P0563
Battery voltage above 16 V for longer than 60 seconds after starting.

Diagnostic Help.
Diagnostic trouble codes P0562 and P0563 do not indicate a fault in the literal sense.

If battery voltage is lower than 10 V or higher than 16 V for more than 60 seconds, a consequential fault may arise which is due to battery voltage being too low or too high. Diagnostic trouble codes P0562 and P0563 are generated to indicate battery voltage outside the normal operating range and avoid unnecessary fault diagnosis.

Check The Wiring.
Intermittent faults may occur as a result of temporary short circuits and breaks in the wiring. Jiggle the wiring at several points and in different directions to ascertain whether the wiring harness, including any connectors, is causing the trouble. Observe the multimeter, ISAT scan tool or test lamp while doing this.





Diagnostic Procedure.
1 Check any additional diagnostic trouble codes

- Obtain readouts of all diagnostic trouble codes using the ISAT scan tool.

Does the ISAT scan tool show any other diagnostic trouble codes?

YES:
^ Continue with point 2.
NO:
^ Check the battery voltage and also the control module's ground connection and power supply, if considered necessary. Continue with point 2.

2 Final check

- Clear the diagnostic trouble code.
- Implementation of driving cycle:
^ Drive the car at varying engine loads and rpm for 5 minutes.
- Evaluation of driving cycle:
^ Check whether the diagnostic trouble code has recurred.

Has the diagnostic trouble code recurred?

YES:
^ Continue at "Before Replacing a Control Module". Component Tests and General Diagnostics
NO:
^ The steps taken to rectify the fault were correct.