Toyota Celica, Corolla, ECHO & MR2 1999-05

2.2L L4 - Std 2

Print

Trouble Code: P1520



Stop Light Switch Circuit Malfunction

Possible Causes:



Stop light switch is shorted to ground
 
Stop light switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1600



PCM Battery Backup Circuit Malfunction

Possible Causes:



Battery backup circuit is open (check EFI fuse and fuse link)
 
Battery terminals are corroded or loose
 
PCM has failed
 

Trouble Code: P1692



Oil Control Valve Circuit Malfunction (Open)

Possible Causes:



OCV (valve) connector is damaged or open
 
OCV (valve) control circuit is open
 
Oil control valve for the VVTL is damaged or has failed
 
Oil pressure switch for the VVTL is damaged or has failed
 
PCM has failed
 

Trouble Code: P1693



Oil Control Valve Circuit Malfunction (Closed)

Possible Causes:



OCV (valve) control circuit is shorted to ground
 
Oil control valve for the VVTL is damaged or has failed
 
Oil pressure switch for the VVTL is damaged or has failed
 
PCM has failed
 

Trouble Code: P1780



Park/Neutral Position Switch Circuit Malfunction

Possible Causes:



P/N switch is shorted to ground or wiring harness is shorted
 
P/N switch is out-of-adjustment, damaged or has failed
 
PCM has failed
 

 
label.common.footer.alt.autozoneLogo