Refer to Body Control Module Schematics,
Cell 51: RIM Power and Ground
.
Circuit Description
Battery positive voltage (B+) is supplied to the rear integration module (RIM) at connector C1 terminal A1, CKT 540 (ORN). The RIM monitors this voltage to determine if it is within a valid operating range.
Conditions for Setting the DTC
The battery positive voltage (B+) level falls below 9 volts for approximately 1.2 seconds or more.
Action Taken When the DTC Sets
| • | The RIM stores DTC B1327 in the module memory. |
| • | The module does not respond to any inputs when DTC B1327 is current. |
| • | No driver warning message will be displayed for this DTC. |
| • | The module will not set DTCs when DTC B1327 is current. |
Conditions for Clearing the DTC
| • | A current DTC clears (status changes from current to history) if the battery positive voltage (B+) level rises above 9.5 volts for approximately 1.2 seconds. |
| • | A history DTC clears after 50 consecutive ignition cycles if the conditions for setting the DTC are no longer present. |
Diagnostic Aids
The module will not check for low battery positive voltage (B+) during and for 2 seconds following the engine CRANK mode.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Body Control Module Diagnostic System Check performed? | -- | Go to Step 2 | |
2 |
Is the DTC still present? | -- | Go to Step 4 | Go to Step 3 |
3 | Did more than one module have a battery voltage low DTC prior to clearing? | -- | Go to Charging System Check in Engine Electrical | Go to Step 8 |
4 |
Is the battery voltage greater than the specified value? | 9 V | Go to Step 6 | Go to Step 5 |
5 |
Is the voltage greater than the specified value? | 9 V | Go to Step 6 | Go to Step 7 |
6 | Replace the rear integration module (RIM). Is the repair complete? | -- | Go to Step 8 | -- |
7 | Repair the open or high resistance in CKT 540 (ORN). Is the repair complete? | -- | Go to Step 8 | -- |
8 |
Is the repair complete? | -- | -- |
