Transmission Control Module (TCM)

P0563-BATTERY VOLTAGE HIGH





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The transmission Control Module monitors ignition voltage. If the monitored voltage rises above a predetermined voltage this DTC will set.

- When Monitored:
Ignition on, engine rpm above 450.

Secondary pressure (monitored current) greater than 0.3MPa

Vehicle speed greater than 0 Km/h (0 mph)

No active DTCs from the following:

Implausible Engine Speed Signal

Secondary pulley (output) speed sensor

- Set Condition:
The Transmission Control Module detects the system voltage above 16.0 volts for a period greater than 5.0 seconds.





Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. Initial Inspection and Diagnostic Overview

1. CHECK FOR RELATED CHARGING SYSTEM DTCs
1. With the scan tool, read the Engine DTCs.

Are there any Charging System related DTCs present?

Yes

- Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure. After repairing the Charging System DTCs, perform the Transmission Verification test to verify the transmission and or controller was not damaged.
- Perform CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test

No

- Go To 2

2. CHECK FOR TIPM DTCs

NOTE: Generator, battery, and charging system must be fully functional before performing this test.

1. With the scan tool, read TIPM DTCs.

Are there any TIPM TCM Power Control Circuit DTCs present also?

Yes

- Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure.

No

- Go To 3

3. CONDITION P0563 PRESENT
1. With the scan tool, read Transmission DTCs.

Is the status active for this DTC?

Yes

- Go To 4

No

- Go To 5

4. CHECK IF THE VEHICLE WAS JUMP-STARTED

Was the vehicle jump-started improperly (in series) or connected to a 24 volt or higher electrical system?

Yes

- Go To 5

No

- Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the TCM.
- Perform CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test

5. CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle the wires while checking for shorted and open circuits.

Were there any problems found?

Yes

- Repair as necessary.
- Perform CVT TRANSMISSION VERIFICATION TEST. CVT Transmission Verification Test

No

- Test Complete.