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Home >> Suzuki >> 2001 >> Esteem GLX, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Esteem 1.6L >> Diagnostic Tests >> DTC P1530: Ignition Timing Adjustment Switch Circuit Malfunction >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

  1. Perform DTC CONFIRMATION TEST  . If DTC P01530 is set, go to next step. If DTC P1530 is not set, problem is intermittent. System is okay at this time. See TROUBLE SHOOTING - NO CODES article.
  2. Ensure test switch terminal of test connector (located in engine compartment fuse/relay block located in left side of engine compartment) is not grounded. See Fig 1 . If test switch terminal is grounded, remove jumper wire and go to DTC CONFIRMATION TEST  . If test switch terminal is not grounded, go to next step.
  3. Turn ignition on. Measure voltage between test connector terminals No. 4 (ground) and No. 5 (test switch terminal). See WIRING DIAGRAMS article. If reading is 10-14 volts, problem is intermittent. System is okay at this time. See TROUBLE SHOOTING - NO CODES article. If reading is not 10-14 volts, check for short to ground in Purple/White wire between ignition timing adjustment test switch and ECM 22-pin connector E92 terminal No. 7. If wire is okay, replace ECM and go to DTC CONFIRMATION TEST  . See Figure .
Fig 1: Identifying Test Connector Terminals
G98B12337Courtesy of SUZUKI OF AMERICA CORP.
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