Section 20 (Memory System)
WARNING: This page is about a different car, the 1998 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- Component Locations
- Trouble Shooting
- Testing - System Checks
- System Testing
- Notes
- Left Seat Does Not Manually Move In Any Direction
- Left Seat Does Not Manually Move In One Direction
- Left Lumbar Support Does Not Manually Move In Any Direction
- Left Lumbar Support Does Not Manually Move In One Direction
- Both Mirrors Do Not Move Manually
- Both Mirrors Do Not Manually Move Up & Down
- Both Mirrors Do Not Manually Move Left & Right
- Left Mirror Does Not Move Manually
- Right Mirror Does Not Move Manually
- One Mirror Does Not Move Left & Right For Manual & Recall Functions
- One Mirror Does Not Move Up & Down For Manual & Recall Functions
- Memory Function Switch Inoperative
- Self-Diagnostics
- Testing - Memory Seat Module (MSM) Diagnostic Trouble Codes (DTCS)
- Notes
- DTC B0846: 5-Volt Feed Failure
- DTC B0856: Dirty Battery Failure
- DTC B1656: EEPROM Write Error & DTC B1658: EEPROM Checksum Error
- DTC B1982: Battery/Source Voltage High & DTC B1983: Battery/Source Voltage Low
- DTC B2115-B2120: Sensor Failed
- DTC B2130: Seat Motor Failure
- DTC U1064: Loss Of Serial Communications (PZM)
- DTC U1255: Generic Loss Of Serial Communications
- DTC U1300: Class 2 Shorted To Ground/Voltage
- TESTING - MEMORY MIRROR MODULE (MMM) DIAGNOSTIC TROUBLE CODES (DTCs)
- DTC B1656: EEPROM Write Error & DTC B1658: EEPROM Checksum Error
- DTC B1982: Battery/Source Voltage High & DTC B1983: Battery/Source Voltage Low
- DTC B2101-B2108: Switch Failed
- DTC B2130-B2133: Memory Key Failed
- DTC B2140-B2143: Mirror Switch Failed
- DTC B2144-B2151: Sensor Shorted
- DTC U1064: Loss Of Serial Communications (PZM)
- DTC U1128: Loss Of Serial Communications (IRC)
- DTC U1255: Generic Loss Of Serial Communications
- DTC U1300: Class 2 Shorted To Ground/Voltage
- Removal & Installation
- Wiring Diagrams