Mercedes-Benz Sprinter 2003 Manual page 240

VEHICLE THEFT/SECURITY
SECURITY SYSTEM INTERFACE FAILURE - SSM —
TEST
3 Disconnect the Sentry Key Remote Entry Module connector.
Disconnect the Security System Module C2 connector.
Measure the resistance between ground and the Security System Interface circuit.
Is the resistance below 20000.0 ohms?
Yes → Repair the Security System Interface circuit for a short to ground.
→ Go To 4
No
4 Disconnect the Sentry Key Remoter Entry connector.
Disconnect the Security System Module C2 connector.
Measure the resistance of the Security System circuit between the SSM C2 connector
and the CTM C1 connector..
Is the resistance below 5.0 ohms?
Yes → Replace the Security System Module.
→ Repair the Security System Interface circuit for an open.
No
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
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Continued
APPLICABILITY
All
All