Suzuki Esteem, Swift 1994-02

1.8L I4 VIN 4 Std 2

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Trouble Code: P0500



Vehicle Speed Sensor Circuit Malfunction

Possible Causes:



VSS signal circuit is open or shorted to ground
 
VSS ground circuit is open
 
VSS signal circuit from Combo Meter open or shorted to ground
 
VSS is damaged or has failed (drive gear may be damaged)
 
PCM has failed
 
TSB TS4-23 (6/96) contains information related to this code
 

Trouble Code: P0505



Idle Speed Control System

Possible Causes:



IAC valve control circuit is open or shorted to ground
 
IAC valve power circuit is open (check power from the relay)
 
IAC valve ground circuit is open
 
IAC valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P0506



Idle Speed Control System Lower Than Expected

Possible Causes:



IAC valve control circuit is open or shorted to ground
 
IAC valve power circuit is open (intermittent fault)
 
IAC valve ground circuit is open (intermittent fault)
 
Throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

Trouble Code: P0507



Idle Speed Control System Higher Than Expected

Possible Causes:



IAC valve control circuit is open (intermittent fault)
 
IAC valve power circuit is open (intermittent fault)
 
IAC valve ground circuit is open (intermittent fault)
 
Throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

Trouble Code: P0601



PCM Memory Check Sum Error

Possible Causes:



Clear the trouble code, and recheck for the same code.
 
If this trouble code resets, the PCM must be replaced
 

Trouble Code: P0603



PCM EEPROM Memory Error

Possible Causes:



The contents of the EEPROM have changed
 
Clear the trouble codes, and recheck for the same code. If the same code resets, the PCM has failed.
 

Trouble Code: P1410



Fuel Tank Pressure Control Solenoid Circuit Malfunction

Possible Causes:



FTP control solenoid connector is damaged, open or shorted
 
FTP control solenoid circuit is open or shorted to ground
 
FTP control solenoid power circuit is open (check the relay)
 
FTP solenoid is damaged (solenoid resistance is 28-39 ohms)
 
PCM has failed
 

Trouble Code: P1450



Barometric Pressure Sensor Circuit Malfunction

Possible Causes:



BARO sensor connector is damaged, open or shorted
 
BARO sensor signal circuit is open or shorted to ground
 
BARO sensor signal circuit shorted to VREF or system power
 
BARO sensor is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1451



Barometric Pressure Sensor Signal Range/Performance

Possible Causes:



BARO sensor connector is damaged, open or shorted
 
BARO sensor signal circuit is open or shorted to ground
 
BARO sensor signal circuit shorted to VREF or system power
 
BARO sensor is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P1500



Engine 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+)
 
PCM has failed
 

Trouble Code: P1510



PCM Backup Power Supply Circuit Malfunction

Possible Causes:



Backup power supply circuit is open (check the Dome fuse)
 
Battery terminal connections may be loose or corroded
 
PCM has failed
 

Trouble Code: P1530



Ignition Timing Adjustment Switch Circuit Malfunction

Possible Causes:



ITA switch connector is damaged or shorted
 
ITA switch circuit is shorted to sensor or chassis ground somewhere between the PCM and the test connector
 
PCM has failed
 

 
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