Toyota Land Cruiser, Sequoia 6 2001-06

4.7L V8 - Auto 2

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Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



VSS signal circuit is open, shorted to ground or to power (B+)
 
Combination Meter is damaged or has failed
 
PCM has failed
 
TSB EG004-02 (2/02) contains information related to this code
 

Trouble Code: P0503



Vehicle Speed Sensor 'A' Signal Erratic Or Intermittent

Possible Causes:



ABS ECU is damaged or has failed
 
Combination Meter is damaged or has failed
 
VSS signal circuit is open between the meter and the PCM
 
VSS signal circuit shorted to ground between meter and PCM
 

Trouble Code: P0504



Brake Switch 'A' To 'B' Correlation Malfunction

Possible Causes:



Stoplight switch signal circuit is shorted to power
 
Stoplight switch assembly is damaged or shorted
 
PCM has failed
 

Trouble Code: P0505



Idle Control System Malfunction

Possible Causes:



RSC/RSO connector is damaged, open or shorted
 
RSC or RSO control circuit is open, shorted to ground or power
 
RSO or RSO power circuit is open (test power from EFI relay)
 
IAC valve is contaminated
 

Trouble Code: P0560



System Voltage (Backup Power Circuit) Malfunction

Possible Causes:



Battery backup circuit is open between battery and the PCM
 
PCM has failed
 

Trouble Code: P0606



ECM/PCM Processing Error

Possible Causes:



Clear the codes and retest for this code. If the same code resets, substitute a known good control module and retest. If the trouble code is gone, the original PCM has failed.
 

Trouble Code: P0607



Control Module Performance

Possible Causes:



Clear the codes and retest for this code. If the same code resets, substitute a known good control module and retest. If the trouble code is gone, the original PCM has failed.
 

Trouble Code: P0617



Starter Relay Circuit High Input

Possible Causes:



Park/Neutral switch assembly is damaged or it has failed* Ignition switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0710



Transmission Fluid Temperature Sensor Circuit Malfunction

Possible Causes:



TFT sensor signal circuit is open, shorted to ground or shorted to system power
 
TFT sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0711



Transmission Fluid Temperature Sensor Performance

Possible Causes:



TFT sensor signal circuit or ground circuit has high resistance
 
TFT sensor has failed, or the PCM has failed
 

Trouble Code: P0715



A/T Input Shaft/Direct Clutch Speed Sensor Circuit Malfunction

Possible Causes:



O/D direct clutch speed sensor circuit is open
 
O/D direct clutch speed sensor circuit is shorted to ground
 
O/D direct clutch speed sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0750



A/T Shift Solenoid 1 or 'A' Malfunction (Mechanical)

Possible Causes:



A/T component problems (i.e., in clutch, brake or gears)
 
SS1 or SSA is damaged, stuck "open" or stuck "closed"
 
Transmission valve body is clogged, dirty or stuck
 

Trouble Code: P0753



A/T Shift Solenoid 1 or 'A' Circuit Malfunction

Possible Causes:



SS1 or SSA control circuit is open, shorted to ground or shorted to system power (B+)
 
SS1 or SSA has failed, or the PCM has failed
 

Trouble Code: P0755



A/T Shift Solenoid 'B' Malfunction (Mechanical)

Possible Causes:



A/T component problems (i.e., in clutch, brake or gears)
 
SSB is damaged, stuck "open" or stuck "closed"
 
Transmission valve body is clogged, dirty or stuck
 

Trouble Code: P0758



A/T Shift Solenoid 2 or 'B' Circuit Malfunction

Possible Causes:



SS2 or SSB control circuit is open or shorted to ground
 
SS2or SSB control circuit is shorted to system power (B+)
 
SS2 or SSB is damaged or has failed (an electrical fault)
 
PCM has failed
 

Trouble Code: P0770



A/T Shift Solenoid 'E' (SL) Malfunction (Mechanical)

Possible Causes:



A/T component problems (i.e., in clutch, brake or gears)
 
SL (shift lockup) is damaged, stuck "open" or stuck "closed"
 
Transmission valve body is clogged, dirty or stuck
 

Trouble Code: P0773



A/T Shift Solenoid 'E' (SL) Circuit Malfunction

Possible Causes:



SL control circuit is open or shorted to ground
 
SL control circuit is shorted to system power (B+)
 
SL is damaged or has failed (an electrical fault)
 
PCM has failed
 

Trouble Code: P1130



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

Possible Causes:



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

Trouble Code: P1133



A/F Sensor-11 (Bank 1 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)
 
PCM has failed
 

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 No. 1 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: 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: 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: P1525



Cruise Control Switch Circuit Malfunction

Possible Causes:



Cruise control switch signal circuit is shorted to ground
 
Cruise control switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P1566



Cruise Control Main Switch Circuit Malfunction

Possible Causes:



Cruise control Main switch signal circuit is open
 
Cruise control Main 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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