DTC B1352 [ELECTRO HYDRAULIC POWER ASSIST STEERING (EHPAS)]
id0602b1800400
DTC
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B1352
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Ignition power supply
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DETECTION CONDITION
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• Less than 2.5 V detected at the voltage monitor of the EHPAS control module
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POSSIBLE CAUSE
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• Short to ground in wiring harness between EHPAS control module terminal 2F and ignition switch
• Open circuit in wiring harness between EHPAS control module terminal 2F and ignition switch
• Poor connection at connectors
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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INSPECT FUSES
• Are the fuses normal?
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Yes
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Go to the next step.
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No
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Repair or replace the fuses, then go to the step 3.
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2
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INSPECT EHPAS CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN OR SHORT CIRCUIT
• Start the engine.
• Measure the voltage between following EHPAS control module terminal (wiring harness-side) and ground.
• Is voltage 10 V or more?
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Yes
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Go to the next step.
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No
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Repair or replace the harness for open circuit between EHPAS control module and ground, then go to next step.
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3
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the memory.
• Is same DTC present?
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Yes
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Replace the electric power steering oil pump component, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any other DTCs output?
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Yes
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Go to the applicable DTC inspection.
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No
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Troubleshooting completed.
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