Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCADILLAC1997SEVILLE SLSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTMEMORY MODULESMEMORY SYSTEM
1997 Cadillac Seville SLS
Memory System
1997 Cadillac Seville SLSSECTION Memory System
- Description
- Operation
- Component Locations
- Trouble Shooting
- Notes
- Diagnostic Procedure
- Preliminary Checks
- Diagnostic System Check
- 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
- MEMORY SEAT MODULE (MSM) DIAGNOSTIC TROUBLE CODES (DTCs)
- MSM DTC B1656: EEPROM Write Error & MSM DTC B1658: EEPROM Checksum Error
- MSM DTC B0846: 5-Volt Feed Failure
- MSM DTC B0856: Dirty Battery Failure
- MSM DTC B1982: Battery/Source Voltage High & MSM DTC B1983: Battery/Source Voltage Low
- MSM DTC B2101-B2112: Switch Failed
- MSM DTC B2115-B2120: Sensor Failed
- MSM DTC B2130: Seat Motor Failure
- MSM DTC U1064: Loss Of Serial Communications (PZM)
- MSM DTC U1255: Generic Loss Of Serial Communications
- MSM DTC U1300: Class 2 Shorted To Ground/Voltage
- MEMORY MIRROR MODULE (MMM) DIAGNOSTIC TROUBLE CODES (DTCs)
- Mmm DTC B1656: EEPROM Write Error & Mmm DTC B1658: EEPROM Checksum Error
- Mmm DTC B1982: Battery/Source Voltage High & Mmm DTC B1983: Battery/Source Voltage Low
- Mmm DTC B2101-B2108: Switch Failed
- Mmm DTC B2130-B2133: Memory Key Failed
- Mmm DTC B2140-B2143: Mirror Switch Failed
- Mmm DTC B2144-B2151: Sensor Shorted
- Mmm DTC U1064: Loss Of Serial Communications (PZM)
- Mmm DTC U1128: Loss Of Serial Communications (IRC)
- Mmm DTC U1255: Generic Loss Of Serial Communications
- Mmm DTC U1300: Class 2 Shorted To Ground/Voltage
- Removal & Installation
- Wiring Diagrams
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.