C70 Coupe L5-2.3L Turbo VIN 53 B5234T3 (2001)
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To access relay 212 (2/5), see Replacing relay in passenger compartment central electrical unit.
After performing this procedure, See: Verification
Checking the Wiring - III
Checking The Wiring
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Disconnect the control unit connector.
If the seat-belt reminder comes on/ticks weakly the whole time, a short circuit to voltage supply has probably damaged the control unit. The short circuit
must be remedied before any component is replaced.
Check whether there is a short circuit to voltage supply by:
Ignition on.
Measure the current between #34 and ground. The current should not be greater than 60 mA.
Check #34 for a short circuit to ground, as described in Checking wiring and terminals - Permanent faults.
Check #34 for a short circuit to voltage supply, as described in Checking wiring and terminals - Permanent faults.
Check also relay 212 (2/5) #6 for a short circuit to ground, as described in Checking wiring and terminals - Permanent faults.
If no fault is found, test by using a new seat-belt reminder.
See: Restraint Systems/Air Bag Systems/Testing and Inspection/Component Tests and General Diagnostics/Component Tests and General
Diagnostics/Checking Wiring and Terminals - Permanent Faults
Do the necessary corrective action.
Additional information
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To access/replace control unit, see SRS control module
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To access/replace the seat-belt reminder, see Replacing relay in passenger compartment central electrical unit.
After performing this procedure, See: Verification
Verification
Verification
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Install components etc.
Hint: After the repair it is necessary to check that the fault has disappeared.
Check the seat-belt reminder function.
Test Complete
