P1530 – Ignition Timing Adjustment Switch Circuit

P1530 Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1530 Possible Causes

Faulty Ignition Timing Adjustment Switch,Ignition Timing Adjustment Switch harness is open or shorted,Ignition Timing Adjustment Switch circuit poor electrical connection

P1530 Description

With the engine running in closed loop, VSS input over 1 mph and the Powertrain Control Module (PCM) detects the Test Switch was on (circuit grounded) for 5 seconds.