For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Memory Seats System Check? | -- | Go to Step 2 | Go to Memory Seats System Check
2 |

1. Turn the ignition switch to the OFF position.
2. Connect a fused jumper from the memory seat/mirror module diagnostic connector to ground.

• | The connector may be taped up into the body harness.

• | The memory seat/mirror module will beep once in order to acknowledge entrance into the mode 1 diagnostics.

• | Refer to Power Seats Circuit Description for a detailed explanation of the memory seat/mirror module diagnostic modes.

3. Operate the LH seat switch in all directions. (The module will beep once for each switch input received.)
4. Any time a switch is operated and the module does not beep, the module did not receive an input from that switch.

Were there any switch operations where the memory seat/mirror module beeped?

--

Go to Step 3

Go to Step 4

3 |

1. Remove ground from the memory seat/mirror module diagnostic connector. After 5 seconds the module will sound 3 beeps to indicate that the module has left the diagnostic mode.
2. Disconnect the LH seat switch.
3. Connect a DMM from the suspect memory seat/mirror module connector cavity to ground.

• | Entire seat forward: C2-D14 (TAN)

• | Entire seat back: C2-C7 (LT GRN)

• | Rear vertical up: C2-D16 (YEL)

• | Rear vertical down: C2-C15 (LT BLU/WHT)

• | Front vertical up: C2-D15 (DK GRN)

• | Front vertical down: C2-C14 (DK BLU)

• | Recline forward: C2-C13 (LT GRN)

• | Recline back: C2-C16 (LT BLU)

4. Press the LH seat switch in the suspect direction.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 6

4 | Inspect for an open in the wiring between the non-functioning seat motor and the memory seat/mirror module. Refer to Testing for Continuity in Wiring Systems. Is the suspect wiring OK? | -- | Go to Step 5 | Go to Step 8
5 | Replace the suspect motor. Refer to Front Seat Adjuster Motor Replacement or Front Seat Power Recliner Replacement . Is the repair complete? | -- | Go to Memory Seats System Check | --
6 | Inspect the suspect wiring for an open between the LH seat switch and the memory seat/mirror module.

• | Entire seat forward: CKT 1522 (TAN)

• | Entire seat back: CKT 1523 (LT GRN)

• | Rear vertical up: CKT 1519 (YEL)

• | Rear vertical down: CKT 1521 (LT BLU)

• | Front vertical up: CKT 1518 (DK GRN)

• | Front vertical down: CKT 1520 (DK BLU)

• | Recline forward: CKT 276 (LT GRN)

• | Recline back: CKT 277 (LT BLU)

Refer to Testing for Continuity in Wiring Systems.

Is the suspect wiring OK?

--

Go to Step 7

Go to Step 8

7 | Replace the LH seat switch. Refer to Power Seat Switch Replacement Is the repair complete? | -- | Go to Memory Seats System Check | --
8 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Memory Seats System Check | --