Suzuki Esteem, Swift 1994-02

1.3L L4 VIN 2 Std

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1.3L L4 VIN 2 Std

Trouble Code: P0106



Manifold Air Pressure Sensor Range/Performance

Possible Causes:



MAP sensor vacuum line clogged between sensor and manifold
 
Air leak present between vacuum passage and the MAP sensor
 
MAP sensor is damaged, out-of-calibration or has failed
 
PCM has failed
 

Trouble Code: P0125



Insufficient Coolant Temperature For Closed Loop

Possible Causes:



Inspect for low coolant level or an incorrect coolant mixture
 
Check the operation of the thermostat (it may be stuck open)
 
ECT sensor signal circuit has high resistance
 
ECT sensor has failed
 

Trouble Code: P0134



HO2S-11 (Bank 1 Sensor 1) No Activity Detected

Possible Causes:



Air leaks in the intake manifold or exhaust manifold or pipes
 
HO2S is contaminated (wrong fuel), has deteriorated or failed
 
HO2S heater element is damaged or has failed
 
PCM has failed
 
TSB TS015 (12/95) contains information related to this code
 

Trouble Code: P0135



HO2S-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater power circuit is open (check the IG fuse)
 
HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0136



HO2S-12 (Bank 1 Sensor 2) Circuit Low Input

Possible Causes:



HO2S signal circuit open (sensor signal reads over 4.5v)
 
HO2S is shorted to ground
 
HO2S signal ground circuit is open
 
HO2S is contaminated or has failed
 
Vehicle driven until it ran out of fuel, or while very low on fuel
 
PCM has failed
 

Trouble Code: P0141



HO2S-12 (Bank 1 Sensor 2) Heater Circuit Malfunction

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater power circuit is open (check the IG fuse)
 
HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P0172



Fuel System Too Rich (Bank 1)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0300



Multiple Cylinder Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects one or more cylinders
 
Fuel delivery component fault that affects one or more cylinders (i.e., one or more contaminated, dirty or sticking fuel injectors)
 
Ignition system problem (coil or plug) in one or more cylinders
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or PCM system
 
Base engine mechanical fault that affects only one cylinder
 
Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
 
Ignition system problem (coil or plug) that affects one cylinder
 

Trouble Code: P0335



Crankshaft Position Sensor Circuit Malfunction

Possible Causes:



CKP sensor positive (+) circuit is open or shorted to ground
 
CKP sensor negative (-) circuit is open or shorted to ground
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is damaged, contaminated or has failed
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 
Front HO2S and/or the rear HO2S is loose in the mounting hole
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 

Trouble Code: P0440



EVAP System Malfunction

Possible Causes:



Canister air valve (solenoid) is damaged or has failed
 
Charcoal canister is clogged, loaded with fuel or moisture
 
Fuel filler cap loose, cross-threaded, incorrect part or damaged
 
Fuel tank pressure sensor is damaged or has failed
 
Fuel tank or fuel tank sender assembly 'O' ring is leaking
 
Fuel tank vapor line(s) blocked, damaged or disconnected
 
Tank pressure control solenoid is contaminated or damaged
 
Purge solenoid control circuit is open or shorted to ground
 
Purge solenoid power circuit is open (test FI fuse in relay box)
 
Purge solenoid is contaminated, damaged or has failed
 
PCM has failed
 

Trouble Code: P0443



EVAP Canister Purge Solenoid Circuit Malfunction

Possible Causes:



Purge solenoid control circuit is open or shorted to ground
 
Purge solenoid power circuit is open (check IG fuse in the J/B)
 
Purge solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0450



EVAP Pressure Sensor Circuit Malfunction

Possible Causes:



Pressure sensor signal circuit is open or shorted to ground
 
Pressure sensor signal is shorted to VREF or system power
 
Pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0451



EVAP Pressure Sensor Performance

Possible Causes:



Pressure sensor signal circuit is open or shorted to ground
 
Pressure sensor signal is shorted to VREF or system power
 
Pressure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0455



EVAP System Large Leak (0.080") Detected

Possible Causes:



Canister vent (CV) solenoid is stuck open
 
EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube disconnected or cracked, or canister is damaged
 
EVAP canister purge valve stuck closed, or canister damaged
 
Fuel filler cap missing, loose (not tightened) or the wrong part
 
Fuel vapor hoses/tubes blocked or restricted, or fuel vapor control valve tube or fuel vapor vent valve assembly blocked
 
Fuel tank pressure (FTP) sensor has failed (mechanical fault)
 
Fuel tank control valve is contaminated, damaged or has failed
 

Trouble Code: P0480



Radiator Fan Control System Performance

Possible Causes:



Radiator fan relay control circuit is open
 
Radiator fan relay control circuit is shorted to ground
 
Radiator fan relay power circuit is open (check the relay fuse)
 
Radiator fan relay is damaged or has failed
 
PCM has failed
 

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: P0510



Closed Throttle Position Switch Circuit Malfunction

Possible Causes:



Closed throttle position switch signal circuit is open or grounded
 
Closed throttle position switch signal circuit is shorted to power
 
Closed throttle position switch or TP sensor damaged or failed
 
PCM has failed
 

Trouble Code: P0603



PCM EEPROM Memory Error

Possible Causes:



The contents of the EEPROM have changed
 
Clear the trouble code, and recheck for the same code.
 
If this trouble code resets, the PCM must be replaced
 

Trouble Code: P1250



EFE Heater Circuit Malfunction

Possible Causes:



EFE heater control circuit is open or shorted to ground
 
EFE heater ground circuit or power circuit is open (from relay)
 
EFE heater control circuit is shorted to system power (B+)
 
EFE heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1410



Fuel Tank Pressure Control Solenoid Circuit Malfunction

Possible Causes:



FTP control solenoid circuit is open or shorted to ground
 
FTP control solenoid power circuit is open (check the relay)
 
FTP control solenoid is damaged, or has failed
 
PCM has failed
 

Trouble Code: P1450



Barometric Pressure Sensor Circuit Malfunction

Possible Causes:



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 Performance

Possible Causes:



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: P1460



Radiator Fan Control System Circuit Malfunction

Possible Causes:



Radiator fan relay control circuit is open or shorted to ground
 
Radiator fan relay ground circuit or power circuit is open
 
Radiator fan relay is 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 circuit is shorted to sensor or chassis ground somewhere between the PCM and the test connector
 
PCM has failed
 

 
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