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.
1998 Cadillac Eldorado BaseFACTORY OEM SERVICE PROCEDURE
Left Mirror Does Not Move Manually
NOTE:
After repair or component replacement is completed, perform MEMORY SYSTEM CHECK
under TESTING - SYSTEM CHECKS to verify system is operating properly.
- Perform MEMORY SYSTEM CHECK under TESTING - SYSTEM CHECKS. Go to next step.
- Using mirror select switch, select left mirror. Using test light, backprobe between outside mirror switch connector terminals "H" (Orange wire) and "E" (Yellow wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 7).
- Using test light, backprobe between outside mirror switch connector terminals "H" (Orange wire) and "D" (White wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 7).
- Using test light, backprobe between outside mirror switch connector terminal "H" (Orange wire) and Memory Mirror Module (MMM) connector terminal F7 (Yellow wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 8).
- Using test light, backprobe between outside mirror switch connector terminal "H" (Orange wire) and MMM connector terminal E7 (White wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 9).
- Replace Memory Mirror Module (MMM).
- Replace outside mirror switch. See MIRRORS - POWER article.
- Repair open in circuit No. 1517 (Yellow wire) between outside mirror switch and MMM. See WIRING DIAGRAMS .
- Repair open in circuit No. 1512 (White wire) between outside mirror switch and MMM. See WIRING DIAGRAMS .
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.