OBD II Fault Code P1535 :

Description of Fault code P1535

PGM-FI MAIN RELAY CIRCUIT MALFUNCTION

Possible failuer P1535

• Main Relay harness (Wire error)
• Engine Control Module (ECM) internal (Main Relay drive circuit)
• Battery terminal (Loose, Loose connection)
• Low battery voltage

Diagnostic Procedure using AutoHex II Scan Tool

• When the self-shutdown normally ends, the normal end flag is written in the EEPROM. When the normal end flag is checked on next IG ON (II), the OFF earliness of the pre driving cycle with no written is detected for a number of a specified driving cycle.

Test Conditions using AutoHex tester

• During the process of the self shut-down (Afterrun)

Clear Fault codes Conditions

• When the self-shutdown normally ends, the normal end flag is written in the EEPROM. When the normal end flag is checked on next IG ON (II), the OFF earliness of the pre driving cycle with no written is detected for a number of a specified driving cycle.

MIL Status

• Check Engine Light ON

Note:

• AutoHex II is a professional Auto diagnostic.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex II

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