DTC P1813 [WL-C, WE-C (MT)]

id0302a2800600

DTC P1813

RFW Lock solenoid valve open circuit

DETECTION CONDITION

•  Open circuit has been detected in the Lock solenoid valve wiring harness.

POSSIBLE CAUSE

•  Lock solenoid valve malfunction

•  Connector or terminal malfunction

•  Open circuit in wiring harness between Lock solenoid valve terminal A and main relay

•  Open circuit in wiring harness between Lock solenoid valve terminal B and PCM terminal 253

•  Short to ground in wiring harness between Lock solenoid valve terminal B and PCM terminal 253

•  PCM malfunction

DTC P1813	RFW Lock solenoid valve open circuit
DETECTION CONDITION	• Open circuit has been detected in the Lock solenoid valve wiring harness.
POSSIBLE CAUSE	• Lock solenoid valve malfunction • Connector or terminal malfunction • Open circuit in wiring harness between Lock solenoid valve terminal A and main relay • Open circuit in wiring harness between Lock solenoid valve terminal B and PCM terminal 253 • Short to ground in wiring harness between Lock solenoid valve terminal B and PCM terminal 253 • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT LOCK SOLENOID VALVE CONNECTOR FOR POOR CONNECTION • Turn the engine switch off. • Disconnect the Lock solenoid valve connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 6.
1		No	Go to the next step.
2	INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the engine switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 6.
2		No	Go to the next step.
3	INSPECT LOCK SOLENOID VALVE CIRCUIT FOR OPEN CIRCUIT • Turn the engine switch off. • Inspect for continuity between the following circuits: ― Lock solenoid valve terminal A (wiring harness-side) and main relay terminal D (wiring harness-side) ― Lock solenoid valve terminal B (wiring harness-side) and PCM terminal 253 (wiring harness-side) • Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 6.
4	INSPECT LOCK SOLENOID VALVE CIRCUIT FOR SHORT TO GROUND • Turn the engine switch off. • Inspect for continuity between the following circuits: ― Lock solenoid valve terminal A (wiring harness-side) and body ground ― Lock solenoid valve terminal B (wiring harness-side) and body ground • Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 6.
4		No	Go to the next step.
5	INSPECT LOCK SOLENOID VALVE • Inspect the Lock solenoid valve. (See LOCK AND FREE SOLENOID VALVES INSPECTION.) • Is there any malfunction?	Yes	Replace the Lock solenoid valve, then go to the next step.
5		No	Go to the next step.
6	VERIFY TROUBLESHOOTING OF DTC P1813 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. • Start the engine. • Shift the transfer select lever. • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [WL-C, WE-C].) (See PCM REMOVAL/INSTALLATION (U.K. Specs.) [WL-C, WE-C].)
6		No	Go to the next step.
7	VERIFY AFTER REPAIR PROCEDURE • Perform the “After Repair Procedure“. (See AFTER REPAIR PROCEDURE [WL-C, WE-C (Thailand, General (L.H.D. R.H.D.) specs.)].) (See AFTER REPAIR PROCEDURE [WL-C, WE-C (Australian, European (L.H.D. U.K.) specs.)].) • Are any DTCs present?	Yes	Go to the applicable DTC troubleshooting. (See DTC TABLE [WL-C, WE-C (Thailand, General (L.H.D. R.H.D.) specs.)].) (See DTC TABLE [WL-C, WE-C (Australian, European (L.H.D. U.K.) specs.)].)
7		No	Troubleshooting completed.