Subaru Crosstrek Service Manual: Dtc c2521 speed abnormal

DTC DETECTING CONDITION:

Detected when transmitter normal signal is received at a vehicle speed of less than 6 km/h (4 MPH).

Trouble symptom:

Tire pressure warning light blinks 25 times and then illuminates.

Wiring diagram:

Tire Pressure Monitoring System Tire Pressure Monitoring System > WIRING DIAGRAM">

1.CHECK LAN COMMUNICATION.

Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE">

Is there any fault?

Repair it according to the diagnosis for LAN system.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2521 SPEED ABNORMAL">Go to Step 2.

2.CHECK HARNESS (OPEN CIRCUIT).

Measure the resistance between TPMS & keyless entry CM or TPMS CM and body integrated unit.

Connector & terminal

Without keyless access with push button start

(R221) No. 11 — (i171) No. 11:
(R221) No. 5 — Chassis ground:

With keyless access with push button start

(R211) No. 11 — (i171) No. 11:
(R211) No. 5 — Chassis ground:

Is the resistance less than 10 ??

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2521 SPEED ABNORMAL">Go to Step 3.

Repair the harness.

3.CHECK CONNECTOR.

Check each connector.

Is there poor contact or any other faults?

Repair the connector.

Replace the TPMS & keyless entry CM or TPMS CM. Tire Pressure Monitoring System">

Dtc c2021 tire 1 air pressure low (normal mode)

Dtc c2022 tire 2 air pressure low (normal mode)

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