Refer to
Cell 55
Circuit Description
The battery positive voltage (B+) is supplied to the driver door module (DDM) at the DDM connector C1 terminal 11, CKT 1540 (ORN). The DDM monitors this voltage to determine if the voltage is within a valid operating range.
Conditions for Setting the DTC
The B+ level falls below 9 V for 1 second or more.
Action Taken When the DTC Sets
| • | DTC B1983 is stored in the DDM memory. |
| • | The DDM does not respond to any manual or memory inputs when the voltage is less than 9 V. |
| • | No driver warning is displayed for this DTC. |
| • | The DDM switch failure and position sensor failure DTCs will not set while DTC B1983 is current. |
Conditions for Clearing the DTC
| • | This DTC will set from current to history when the B+ rises above 9.5 V for approximately 1.2 seconds. |
| • | The history DTC clears after 50 ignition cycles. |
| • | Use a scan tool in order to clear a history DTC. |
Diagnostic Aids
The DDM does not test for low B+ during, and for 2 seconds following, the engine crank mode. This ensures that DTC B1983 is not improperly set .
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
-
Perform the system check before diagnosing DTC B1983.
-
This verifies that the DTC was not incorrectly set.
-
This determines whether the malfunction is in the charging system or in the DDM.
-
Clear all of the DTCs after completing the repair procedure.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Did you perform the Power Door Diagnostic System Check? | -- | Go to Step 2 | ||
Is the battery positive voltage greater than the specified value? | 9 V | Go to Step 4 | Go to Step 3 | |
Is the voltage less than the specified value? | 9 V | Go to Charging System Check in Engine Electrical. | Go to Step 4 | |
4 | Replace the DDM. Refer to Front Door Module Replacement . Did you complete the repair? | -- | Go to Step 5 | -- |
Did you clear all of the DTCs? | -- | -- |
