Circuit Description
The memory seat module (MSM) is supplied battery positive voltage (B+) from the seats circuit breaker in the left underhood fuse block. This battery positive voltage (B+) supply is the source power for the seat motors.
Conditions for Setting the DTC
The battery positive supply voltage (B+) is out of the 9.0-15.5 volt range.
Conditions for Clearing the DTC
The dirty battery positive voltage (B+) is within a valid operating range during the last monitoring cycle.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Memory Seats Schematics | ||||
1 | Did you perform the Diagnostic System Check - Power Seat Systems? | -- | Go to Step 2 | |
2 | Test the Seats Circuit Breaker in the left underhood fuse block for an open. Does the Seats Circuit Breaker test OK? | -- | Go to Step 3 | Go to Step 6 |
3 | Measure the voltage from the battery positive voltage (B+) circuit of the memory seat module to a good ground. Does the voltage measure within the specified range? | 9-15 V | Go to Step 4 | Go to Step 5 |
4 | Inspect for poor connections at the harness connector of the memory 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 |
5 | Repair the open in the battery positive voltage (B+) circuit of the memory seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 9 | -- |
6 | Repair the short to ground in the battery positive voltage (B+) circuit of the memory seat module. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 9 | Go to Step 7 |
7 | Replace the seats circuit breaker. Refer to Circuit Protection - Circuit Breakers in Wiring Systems. Did you complete the replacement? | -- | Go to Step 9 | -- |
8 | Replace the memory seat module. Refer to Memory Seat Control Module Replacement . Did you complete the replacement? | -- | Go to Step 9 | -- |
9 |
Does the DTC reset? | -- | Go to Step 2 | System OK |
