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 MANUALSMERCURY1998MOUNTAINEER 5.0 P, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 9 (MODULE COMMUNICATIONS NETWORK)TESTINGTEST B: REMOTE ANTI-THEFT PERSONALITY (RAP) MODULE DOES NOT RESPOND TO NGS TESTER
1998 Mercury Mountaineer 5.0 P, AWD
Test B: Remote Anti-Theft Personality (Rap) Module Does Not Respond To NGS Tester
1998 Mercury Mountaineer 5.0 P, AWDSECTION Test B: Remote Anti-Theft Personality (Rap) Module Does Not Respond To NGS Tester
WARNING: This page is about a different car, the 1997 Mercury Mountaineer and 1997 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect RAP module connector C336 located behind left rear quarter panel. Inspect connector for physical damage, bent terminals or corrosion. Repair or replace connector as necessary and retest system. See Fig 1. If connector is okay, go to next step.
- Measure resistance of Light Blue/White wire between RAP module connector C336, terminal No. 3 and Data Link Connector (DLC), terminal No. 7. If resistance is less than 5 ohms, replace RAP module and retest system. If resistance is more than 5 ohms, go to next step.
- Disconnect and inspect both halves of bulkhead connector C212 located at left corner of instrument panel, near cowl panel grommet. Inspect connector for physical damage, bent terminals or corrosion. Repair or replace connector as necessary and retest system. See Fig 1. If connector is okay, go to next step.
- Measure resistance of Light Blue/White wire between RAP module connector C336, terminal No. 3 and bulkhead connector C212 (male half), terminal No. 51. See Fig 1. If resistance is less than 5 ohms, repair open in Light Blue/White wire between bulkhead connector C212 (female half) and DLC and retest system. If resistance is more than 5 ohms, repair open in Light Blue/White wire between RAP module connector C336 and bulkhead connector C212 and retest system.
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.