P0562-ECM VOLTAGE TOO LOW

For a complete wiring diagram Refer to Section 8W



Possible Causes
CHECKING ECM POWER AND GROUNDS
ECM
INTERMITTENT CONDITION

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)



Diagnostic Test

1. CHECK FOR ACTIVE DTC

Turn the ignition on.
With the scan tool, erase ECM DTCs.

NOTE: This DTC may be caused by a charging system problem. Refer to the Service Information and verify proper charging system operation before continuing.


Test drive the vehicle.
Turn the ignition on.
With the scan tool, read ECM DTCs.

Did this DTC set again?

Yes


No

2. CHECK POWER AND GROUNDS

Refer to the symptom list and perform the Checking the ECM Power and Ground test.

Were any problem found with the ECM powers and grounds?

Yes


No

3. INTERMITTENT CONDITION

WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.


NOTE: The conditions that set the DTC are not present at this time. The following list may help in identifying the intermittent condition.


With the engine running at normal operating temperature, monitor the scan tool parameters related to the DTC while wiggling the wiring harness. Look for parameter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

Were any of the above conditions present?

Yes


No