B0846

DTC B0846

CIRCUIT DESCRIPTION
The memory seat module has two battery voltage supply circuits. The battery 1 voltage supply circuit is used to provide power for the memory seat module logic and internal driver operation. The battery 2 voltage supply circuit is used to provide a high current supply for the memory seat module output devices.

CONDITIONS FOR RUNNING THE DTC
The battery 1 circuit voltage to the memory seat module is within 6.5 to 26.5 volts.

CONDITIONS FOR SETTING THE DTC
- The memory seat module detects battery 1 or battery 2 voltage range under 8.5 volts or over 16.3 volts.
- The condition must be present for 2 seconds.

ACTION TAKEN WHEN THE DTC SETS
- A history DTC is stored in the memory seat module.
- Memory seat module DTCs can only be set as a history code even if the fault is current.
- No driver warning message will be displayed for these DTCs.

CONDITIONS FOR CLEARING THE DTC
Memory seat module DTCs may be cleared only by using a scan tool or the IPC clearing DTCs feature.

DIAGNOSTIC AIDS
- A DTC B0846 can be the result of a short to ground in an adjuster motor or control circuit, first diagnose a DTC B2002, B2007, or B2012 if present.
- Inspect the battery and charging system for proper operation.
- If the fault is not current the problem may be intermittent.

TEST DESCRIPTION

Steps 1-7:

The number(s) below refer to the step number(s) on the diagnostic table.
3. This step determines if the battery voltage and ground circuits are capable of proper operation during high current demand.