LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 687 (Power Seat System) >> Diagnostic Information and Procedures >> Memory Seat Feature Inoperative (Escalade )

Memory Seat Feature Inoperative (Escalade )

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Memory Seat Feature Inoperative (Escalade )

Step Action Yes No
Schematic Reference:  Memory Seats Schematics  
DEFINITION: One or more of the memory recall functions are inoperative.
1 Did you perform the Power Seat Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Power Seat Systems 
2 Attempt to set and recall memory 1, memory 2, and exit seat position settings.
Does the system operate normally?		 Go to TESTING FOR INTERMITTENT AND POOR CONNECTIONS Go to Step 3 
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 
4
  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 
5
  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 
6
  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 
7
  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 
8
  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 
9
  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 
10 Test the memory 1 switch signal circuit for the following conditions:
  • Open
  • Short to ground
  • Short to voltage

Refer to CIRCUIT TESTING and WIRING REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 14 
11 Test the memory 2 switch signal circuit for the following conditions:
  • Open
  • Short to ground
  • Short to voltage

Refer to CIRCUIT TESTING and WIRING REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 14 
12 Test the memory EXIT switch signal circuit for the following conditions:
  • Open
  • Short to ground
  • Short to voltage

Refer to CIRCUIT TESTING and WIRING REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 14 
13 Repair the memory recall switch voltage supply circuit for an open or short to ground. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and to CONNECTOR REPAIRS .
Is the repair complete?		 Go to Step 20  -
14 Inspect for poor connections at the harness connector of the memory recall switch assembly. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and to CONNECTOR REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 17 
15 Inspect for poor connections at the harness connector of the memory seat module. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and to CONNECTOR REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 18 
16 Inspect for poor connections at the harness connector of the memory mirror module. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS and CONNECTOR REPAIRS .
Did you find and correct the condition?		 Go to Step 20  Go to Step 19 
17 Replace the memory recall switch assembly.
Did you complete the replacement?		 Go to Step 20  -
18 Replace the memory seat module. Refer to Memory Seat Control Module Replacement .
Did you complete the replacement?		 Go to Step 20  -
19 Replace the memory mirror module.
Did you complete the replacement?		 Go to Step 20  -
20 Operate the system to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
scientia non olet · About LEMON Manuals