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P1500

Starter Signal Circuit

2002-2010 Lexus SC 430 4.3L V8 πŸ‡¨πŸ‡¦

Moderate SeverityPowertrain

Description

The ECM is not receiving the proper signal from the starter motor circuit.

Symptoms

  • CEL
  • Extended cranking
  • Rough startup
  • Poor cold start

Common Causes

  • Faulty starter relay
  • Damaged wiring
  • Poor ground
  • Faulty ignition switch

Diagnostic Steps

  1. Test starter signal wire
  2. Check relay operation
  3. Inspect wiring
  4. Test ignition switch

Repair Notes

Repair starter signal circuit.

Other Powertrain Codes

P1500 on Other Vehicles

Common Questions

What does code P1500 mean on a 2002-2010 Lexus SC 430?

P1500 stands for "Starter Signal Circuit". The ECM is not receiving the proper signal from the starter motor circuit.

What are the symptoms of P1500 on a Lexus SC 430?

Common symptoms of P1500 include: CEL, Extended cranking, Rough startup, Poor cold start.

What causes P1500 on a 2002-2010 Lexus SC 430?

Common causes of P1500 include: Faulty starter relay, Damaged wiring, Poor ground, Faulty ignition switch.

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