Operation CHARM: Car repair manuals for everyone.

Memory Seat Module






U0011-00-CAN Interior Bus Off Performance






For a complete wiring diagram, refer to.

When Monitored: Continuously.

Set Condition: The Memory Seat Module detects the (D265) CAN IHS BUS (125K)(+) circuit or (D264) CAN IHS BUS (125K)(-) circuit open.






Test Step 1 - TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, record and erase MSMD DTCs

Cycle the ignition from on to off three times.

Turn the ignition on.

With the scan tool, read active MSMD DTCs.

Does the scan tool display this DTC as active?

Yes

Go to Test Step 2 => [ Test Step 2 - (D265) CAN IHS BUS (125K)(+) CIRCUIT OPEN ]

No

The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Perform the Body Verification Test. Refer to => Non - DTC Based Diagnostics. Body Interior

Test Step 2 - (D265) CAN IHS BUS (125K)(+) CIRCUIT OPEN







Turn the ignition off.

Disconnect the Memory Seat Module C1 harness connector.

Measure the voltage between the (D265) CAN IHS BUS (125K)(+) circuit and ground.

Is there any voltage present?

Yes

Go to Test Step 3 => [ Test Step 3 - (D264) CAN IHS BUS (125K)(-) CIRCUIT OPEN ]

No

Repair the (D265) CAN IHS BUS (125K)(+) circuit for an open.

Perform the Body Verification Test. Refer to => Non - DTC Based Diagnostics. Body Interior

Test Step 3 - (D264) CAN IHS BUS (125K)(-) CIRCUIT OPEN







Turn the ignition off.

Disconnect the Memory Seat Module C1 harness connector.

Measure the voltage between the (D264) CAN IHS BUS (125K)(-) circuit and ground.

Is there any voltage present?

Yes

Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Memory Seat Module.

Perform Power Seat System Verification Test. Refer to => Non - DTC Based Diagnostics. Power Seat System Verification Test

No

Repair the (D264) CAN IHS BUS (125K)(-) circuit for an open.

Perform the Body Verification Test. Refer to => Non - DTC Based Diagnostics. Body Interior