Honda Civic manuals

Subaru Legacy 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:

NOTE:

For the coupling connector, refer to “WIRING SYSTEM”.

Tire Pressure Monitoring System Tire Pressure Monitoring System > WIRING DIAGRAM

STEPCHECKYESNO

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

2.CHECK HARNESS (OPEN CIRCUIT).

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

Connector & terminal

Without push button start

(R221) No. 11 — (i81) No. 10:
(R221) No. 5 — Chassis ground:

With push button start

(R211) No. 11 — (i81) No. 10:
(R211) No. 5 — Chassis ground:

Is the resistance less than 10 --

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2521 SPEED ABNORMAL

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

Diagnostic procedure with diagnostic trouble code (dtc)
...

Dtc c2021 tire 1 air pressure low (normal mode)
NOTE:Refer to DTC C2024 for diagnostic procedure. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2024 TIRE 4 AIR PRESSURE LOW (NORMAL MODE) ...

Other materials:

Remote keyless entry system
CAUTION  Do not expose the remote transmitter to severe shocks, such as those experienced as a result of dropping or throwing.  Do not take the remote transmitter apart except when replacing the battery.  Do not get the remote transmitter wet ...

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