Schematic Reference: Memory Seats Schematics

DEFINITION: One or more of the memory set or recall functions are inoperative.

Did you review the Memory Seats Description and Operation?

Go to Step 2

Go to Symptoms - Seats

Attempt to set and recall memory 1 and memory 2 seat position settings.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Disconnect the memory seat module connector C3.
2. Turn the ignition ON with the engine OFF.
3. Place the vehicle in PARK.
4. Connect a test lamp from the shift lock control switch supply circuit terminal in the memory seat module harness connector to ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 11

1. Connect a test lamp from the memory 1 switch signal circuit terminal in the memory seat module harness connector to ground.
2. Press the memory 1 switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 5

Go to Step 7

1. Connect a test lamp from the memory 2 switch signal circuit terminal in the memory seat module harness connector to ground.
2. Press the memory 2 switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 6

Go to Step 9

1. Connect a test lamp from the memory set switch signal circuit terminal in the memory seat module harness connector to ground.
2. Press the memory SET switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 14

Go to Step 10

1. Disconnect the memory recall switch assembly connector.
2. Connect a test lamp from the battery positive voltage supply circuit terminal in the memory recall switch assembly harness connector to ground.

Does the test lamp illuminate?

Go to Step 8

Go to Step 12

Test the memory 1 switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 13

Test the memory 2 switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 13

Test the memory set switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 13

Test the shift lock control switch supply circuit to the memory seat module for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Shift Lever Can Be Moved without Brake Pedal Depressed in Shift Lock Control

Repair the battery voltage supply circuit to the memory recall switch assembly for an open or short to ground. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

Inspect for poor connections at the harness connector of the memory recall switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 15

Inspect for poor connections at the harness connector of the memory seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 16

Replace the memory recall switch assembly.

Did you complete the replacement?

Go to Step 17

--

Replace the Memory Seat Module. Refer to Memory Seat Control Module Replacement .

Did you complete the replacement?

Go to Step 17

--

Operate the Memory Seat System to verify the repair.

Did you correct the condition?

System OK

Go to Step 2

Schematic Reference: Memory Seats Schematics

DEFINITION: One or more of the memory recall functions are inoperative.

Did you perform the Power Seat Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Power Seat Systems

Attempt to set and recall memory 1, memory 2, and exit seat position settings.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, observe the memory recall switches parameter in the memory mirror module Inputs data list.
4. Press the memory 1 switch.

Does the scan tool display the memory 1 switch as active only while the switch is pressed?

Go to Step 4

Go to Step 6

1. With a scan tool, observe the memory recall switches parameter in the memory mirror module Inputs data list.
2. Press the memory 2 switch.

Does the scan tool display the memory 2 switch as active only while the switch is pressed?

Go to Step 5

Go to Step 7

1. With a scan tool, observe the memory recall switches parameter in the memory mirrors module Inputs data list.
2. Press the memory EXIT switch.

Does the scan tool display the memory EXIT switch as active only while the switch is pressed?

Go to Step 15

Go to Step 8

1. Disconnect the memory mirror module connector C1.
2. Connect a test lamp from the memory 1 switch signal circuit terminal in the memory mirror module harness connector to ground.
3. Press the memory 1 switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 16

Go to Step 9

1. Disconnect the memory mirror module connector C1.
2. Connect a test lamp from the memory 2 switch signal circuit terminal in the memory mirror module harness connector to ground.
3. Press the memory 2 switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 16

Go to Step 11

1. Disconnect the memory mirror module connector C1.
2. Connect a test lamp from the memory EXIT switch signal circuit terminal in the memory mirror module harness connector to ground.
3. Press the memory EXIT switch.

Does the test lamp illuminate only when the switch is pressed?

Go to Step 16

Go to Step 12

1. Disconnect the memory recall switch assembly connector.
2. Connect a test lamp from the memory recall switch voltage supply circuit terminal in the harness connector to ground.

Does the test lamp illuminate?

Go to Step 10

Go to Step 13

Test the memory 1 switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 14

Test the memory 2 switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 14

Test the memory EXIT switch signal circuit for the following conditions:

Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 14

Repair the memory recall switch voltage supply circuit for an open or short to ground. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in the Wiring Systems.

Is the repair complete?

Go to Step 20

--

Inspect for poor connections at the harness connector of the memory recall switch assembly. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in the Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

Inspect for poor connections at the harness connector of the memory seat module. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in the Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 18

Inspect for poor connections at the harness connector of the memory mirror module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in the Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 19

Replace the memory recall switch assembly.

Did you complete the replacement?

Go to Step 20

--

Replace the memory seat module. Refer to Memory Seat Control Module Replacement .

Did you complete the replacement?

Go to Step 20

--

Replace the memory mirror module.

Did you complete the replacement?

Go to Step 20

--

Operate the system to verify the repair.

Did you correct the condition?

System OK

Go to Step 2