P0562

BATTERY VOLTAGE





Fault Symptoms.
None

Conditions.
P0562
Battery voltage lower than 10 V for more than 60 seconds after starting.

P0563
Battery voltage higher than 16 V for more than 60 seconds after starting.

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

If battery voltage is lower than 10 V or higher than 16 V for more than 60 seconds, a consequential fault may arise the cause of which is too low or too high battery voltage. 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 for additional diagnostic trouble codes

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

Does the ISAT scan tool show 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. Then 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.