Circuit Description
Battery positive voltage is supplied at all times to the rear seat load floor switch and the rear seat position switch by the rear seat module (RSM). The RSM monitors these battery positive voltage supply circuits for the protection of internal circuitry of the module.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1395 Device Voltage Reference Output 1 Circuit
Conditions for Running the DTC
The RSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.
Conditions for Setting the DTC
This DTC will set only when the RSM detects that the device switch supply voltage is less than 3 volts.
Action Taken When the DTC Sets
| • | The RSM will not allow seat operation. |
| • | If this condition occurs during seat operation, the operation will be cancelled. |
Conditions for Clearing the DTC
The DTC will clear when the RSM detects that the device switch voltage is greater than 3 volts.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Driver Seat Schematics Connector End View Reference: Power Seat Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Activate either one of the rear seat switches. Does the seat move in the commanded direction? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Test the battery positive voltage supply circuit of the rear seat load floor switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 4 |
4 | Test the signal circuit of the rear seat load floor switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 5 |
5 | Test the battery positive voltage supply circuit of the rear seat back panel position switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 6 |
6 | Test the signal circuit of the rear seat back panel position switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 7 |
7 | Inspect for poor connections at the harness connector of the rear seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
8 | Replace the rear seat module (RSM). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 9 | -- |
9 |
Does the DTC reset? | Go to Step 2 | System OK |
