DTC P1528 [WL-C, WE-C (Australian, European (L.H.D. U.K.) specs.)]

id0102c4152800

DTC P1528

Exhaust shutter solenoid valve circuit problem

DETECTION CONDITION

•  The PCM monitors the input voltages from the exhaust shutter solenoid valve. If the voltage remains low or high, the PCM determines that the exhaust shutter solenoid valve circuit has malfunction.

POSSIBLE CAUSE

•  Exhaust Shutter solenoid valve malfunction

•  Connector or terminal malfunction

•  Short to ground in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208

•  Short to ground in wiring harness between engine switch and exhaust shutter solenoid valve terminal A

•  Open circuit in wiring harness between engine switch and exhaust shutter solenoid valve terminal A

•  Open circuit in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208

•  Short to power supply in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208

•  PCM malfunction

DTC P1528	Exhaust shutter solenoid valve circuit problem
DETECTION CONDITION	• The PCM monitors the input voltages from the exhaust shutter solenoid valve. If the voltage remains low or high, the PCM determines that the exhaust shutter solenoid valve circuit has malfunction.
POSSIBLE CAUSE	• Exhaust Shutter solenoid valve malfunction • Connector or terminal malfunction • Short to ground in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208 • Short to ground in wiring harness between engine switch and exhaust shutter solenoid valve terminal A • Open circuit in wiring harness between engine switch and exhaust shutter solenoid valve terminal A • Open circuit in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208 • Short to power supply in wiring harness between exhaust shutter solenoid valve terminal B and PCM terminal 208 • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT EXHAUST SHUTTER SOLENOID VALVE CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there malfunction?	Yes	Repair or replace the terminal, then go to Step 10.
3		No	Go to the next step.
4	INSPECT EXHAUST SHUTTER SOLENOID VALVE • Perform exhaust shutter solenoid valve inspection. (See EXHAUST SHUTTER SOLENOID VALVE INSPECTION (European (L.H.D.) specs.) [WL-C, WE-C].) • Is exhaust shutter solenoid valve normal?	Yes	Go to the next step.
4		No	Replace the exhaust shutter solenoid valve, then go to Step 10.
5	INSPECT EXHAUST SHUTTER SOLENOID VALVE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between exhaust shutter solenoid valve terminal A and body ground. • Is the voltage B+?	Yes	Go to the next step.
5		No	Repair or replace the wiring harness for open circuit, then go to Step 10.
6	INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there malfunction?	Yes	Repair or replace the terminal, then go to Step 10.
6		No	Go to the next step.
7	INSPECT EXHAUST SHUTTER SOLENOID VALVE CONTROL CIRCUIT FOR OPEN CIRCUIT • Disconnect the PCM connector. • Inspect for continuity exhaust shutter solenoid valve terminal B and PCM terminal 208. • Is there continuity?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness for open circuit, then go to Step 10.
8	INSPECT EXHAUST SHUTTER SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO GROUND • Inspect for continuity exhaust shutter solenoid valve terminal B and body ground. • Is there continuity?	Yes	Repair or replace the terminal, then go to Step 10.
8		No	Go to the next step.
9	INSPECT EXHAUST SHUTTER SOLENOID VALVE CONTROL CIRCUIT FOR SHORT TO POWER • Disconnect the exhaust shutter solenoid valve connector. • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between exhaust shutter solenoid valve terminal A and body ground. • Is the voltage B+?	Yes	Repair or replace the wiring harness for short to power supply, then go to the next step.
9		No	Go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P1528 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. • Start the engine. • Is the PENDING CODE for this 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].)
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (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 (Australian, European (L.H.D. U.K.) specs.)].)
11		No	Troubleshooting completed.