Lexus RX300, 330 3 2000-06

3.0L V6 - Auto 2

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Trouble Code: P1135



A/F Sensor-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Possible Causes:



A/F sensor heater circuit or ground circuit is open
 
A/F sensor heater power circuit is open
 
A/F sensor heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1150



A/F Sensor-21 (Bank 2 Sensor 1) Circuit Malfunction

Possible Causes:



A/FS signal circuit or ground circuit is open (intermittent fault)
 
A/FS power circuit is open (an intermittent fault)
 
A/FS is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1153



A/F Sensor-21 (Bank 2 Sensor 1) Slow Response

Possible Causes:



A/F sensor signal circuit or ground circuit is open
 
A/F sensor power circuit is open
 
A/F sensor is contaminated, damaged or has failed
 
Intake air leaks, exhaust manifold leaks or PCV system leaks
 
MAF sensor out of calibration (it may be dirty or contaminated)
 

Trouble Code: P1155



A/F Sensor-21 (Bank 2 Sensor 1) Heater Circuit Malfunction

Possible Causes:



A/F sensor heater circuit or ground circuit is open
 
A/F sensor heater power circuit is open
 
A/F sensor heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1300



Igniter Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open between the igniter and PCM
 
IGT or IGF signal circuit is shorted to ground
 
Igniter is damaged or has failed
 
PCM has failed
 

Trouble Code: P1305



Igniter No. 2 Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open or shorted to ground
 
Igniter is damaged or has failed
 
PCM has failed
 

Trouble Code: P1310



Igniter No. 3 Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open or shorted to ground
 
Igniter is damaged or has failed
 

Trouble Code: P1315



Igniter No. 4 Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open or shorted to ground
 
Igniter is damaged or has failed
 
PCM has failed
 

Trouble Code: P1320



Igniter No. 5 Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open between the igniter and PCM
 
IGT or IGF signal circuit is shorted to ground
 
Igniter is damaged or has failed
 
PCM has failed
 

Trouble Code: P1325



Igniter No. 6 Circuit Malfunction

Possible Causes:



IGT or IGF signal circuit is open between the igniter and PCM
 
IGT or IGF signal circuit is shorted to ground
 
Igniter is damaged or has failed
 
PCM has failed
 

Trouble Code: P1335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor (+) circuit is open or shorted to ground
 
CKP sensor (-) circuit is open or shorted to ground
 
CKP sensor (+), (-) circuit is shorted to VREF or system power
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1500



Starter Signal Circuit Malfunction

Possible Causes:



Engine starter signal circuit is open or shorted to ground
 
Engine starter signal circuit is shorted to system power (B+)
 
Starter has failed
 
PCM has failed
 

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: 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
 

 
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