U0103-LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
Ignition run time is greater than one second.
Battery voltage between 10.0 and 16.0 Volts.
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Set Condition:
Bus messages not received from the Electric Gear Shift Module (ESM).
Possible Causes |
|---|
| CAN BUS CIRCUITS OPEN OR SHORTED |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| BCM NOT CONFIGURED CORRECTLY |
| ELECTRIC GEAR SHIFT MODULE (ESM) |
| MODULE THAT SET THIS DTC |
VERIFY DTC IS ACTIVE
| NOTE: | Make sure the IOD fuse is installed and the battery is fully charged before proceeding. |
| 1. | Turn the ignition on. |
| 2. | With the scan tool, read active DTCs. |
Is this DTC active?
Yes
No
- (Refer to 29 - Non-DTC Diagnostics/Communication - Diagnosis and Testing) and perform the Stored Lost Communication DTCs diagnostic procedure.