Protege 1999-2000

1.8L L4 VIN - Auto 4

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Trouble Code: P1135



HO2S-11 (Bank 1 Sensor 1) Heater Circuit Low Input

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater power circuit open between sensor and ignition
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1136



HO2S-11 (Bank 1 Sensor 1) Heater Circuit High Input

Possible Causes:



HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1141



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

Possible Causes:



HO2S heater control circuit is open or shorted to ground
 
HO2S heater power circuit open between sensor and ignition
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1142



HO2S-12 (Bank 1 Sensor 2) Heater Circuit High Input

Possible Causes:



HO2S heater control circuit is shorted to power
 
HO2S heater is damaged or has failed
 
PCM has failed
 

Trouble Code: P1170



HO2S-11 (Bank 1 Sensor 1) Circuit No Inversion

Possible Causes:



An air leak that is located after the MAF sensor
 
Base engine mechanical fault affecting one or more cylinders
 
EVAP Purge valve stuck or the hoses to the valve are reversed
 
Fuel metering fault (fuel injector sticking open or leaking)
 
Fuel pressure too low or too high, fuel supply contaminated
 
HO2S element is contaminated or the HO2S heater has failed
 
PCV system has air leaks at the valve or related hoses
 

Trouble Code: P1250



Pressure Regulator Control Solenoid Circuit Malfunction

Possible Causes:



PRC solenoid control circuit is open
 
PRC solenoid control circuit is shorted to ground
 
Fuel pump relay power circuit is open
 
PCM has failed
 

Trouble Code: P1345



Camshaft Position (SGC) Sensor Circuit Malfunction

Possible Causes:



CMP sensor signal circuit is open or shorted to ground
 
CMP sensor signal circuit is shorted to VREF or system power
 
CMP sensor power circuit open between sensor and main relay
 
CMP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1449



CDCV or TPCV Circuit Malfunction

Possible Causes:



CDCV control circuit is open or shorted to ground
 
CDCV control circuit is shorted to power
 
CDCV power circuit is open between the valve and main relay
 
CDCV is damaged or has failed
 
TPCV solenoid control circuit is open or shorted to ground
 
TPCV (valve) is damaged, leaking or has failed
 
PCM has failed
 

Trouble Code: P1450



EVAP Control System (Leak Down)

Possible Causes:



Air filter element is extremely dirty or clogged
 
Canister drain cut valve (CDCV) is damaged or has failed
 
Tank pressure control valve (TPCV) is damaged or has failed
 
Charcoal canister is full of fuel or moisture, or is damaged
 
EVAP system drain passage is clogged
 
Fuel tank pressure sensor is damaged or out-of-calibration
 
Purge solenoid valve is damaged or has failed
 
PCM has failed
 

Trouble Code: P1455



Fuel Tank Level Sensor Circuit Malfunction

Possible Causes:



Fuel tank level sensor signal circuit open or shorted to ground
 
Fuel tank level sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P1487



EGR Boost Sensor Solenoid Valve Circuit Malfunction

Possible Causes:



EGR boost sensor solenoid circuit is open or shorted to ground
 
EGR boost sensor solenoid circuit is shorted to system power
 
EGR boost sensor solenoid circuit is open or shorted to ground
 
EGR boost sensor solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P1496



EGR Valve Stepper Motor Coil 1 Circuit Malfunction

Possible Causes:



EGR Coil 1 control circuit is open or shorted to ground
 
EGR Coil 1 control circuit is shorted to power
 
EGR Coil 1 power circuit open between valve and main relay
 
EGR Coil 1 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1497



EGR Valve Stepper Motor Coil 2 Circuit Malfunction

Possible Causes:



EGR Coil 2 control circuit is open or shorted to ground
 
EGR Coil 2 control circuit is shorted to power
 
EGR Coil 2 power circuit open between valve and main relay
 
EGR Coil 2 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1498



EGR Valve Stepper Motor Coil 3 Circuit Malfunction

Possible Causes:



EGR Coil 3 control circuit is open or shorted to ground
 
EGR Coil 3 control circuit is shorted to power
 
EGR Coil 3 power circuit open between valve and main relay
 
EGR Coil 3 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1499



EGR Valve Stepper Motor Coil 4 Circuit Malfunction

Possible Causes:



EGR Coil 4 control circuit is open or shorted to ground
 
EGR Coil 4 control circuit is shorted to power
 
EGR Coil 4 power circuit open between valve and main relay
 
EGR Coil 4 is damaged or has failed
 
PCM has failed
 

Trouble Code: P1504



Idle Air Control Solenoid Circuit Malfunction

Possible Causes:



IAC solenoid No. 1 or No. 2 control circuit is open
 
IAC solenoid No. 1 or No. 2 control circuit is shorted to ground
 
IAC solenoid is damaged or has failed (an intermittent fault)
 
PCM has failed
 

Trouble Code: P1512



Variable Timing Control System Shutter Valve (Stuck Closed)

Possible Causes:



CKP sensor is damaged or has failed
 
EGR boost sensor is out of calibration
 
Fuel control sensor is out-of-calibration (ECT, IAT, MAF or TP)
 
VTCS control circuit shorted to ground or to system power (B+)
 
VTCS shutter valve actuator is stuck closed
 
VTCS vacuum hose is loose or disconnected
 
PCM has failed
 

Trouble Code: P1523



VICS Solenoid Valve Circuit Malfunction

Possible Causes:



VICS solenoid valve malfunction
 
Connector or terminal malfunction
 
Short to ground in wiring between VICS solenoid valve terminal B and PCM terminal 19
 
Open circuit in wiring between main relay terminal D and VICS solenoid valve terminal A
 
Open circuit in wiring between VICS solenoid valve terminal B and PCM terminal 19
 
Short to power circuit between VICS solenoid valve terminal B and PCM terminal 19
 
PCM malfunction
 

Trouble Code: P1562



PCM +BB Voltage Low

Possible Causes:



+BB circuit is open
 
+BB circuit is shorted to ground (check for a blown fuse)
 
+BB circuit has high resistance (check the battery connections)
 
PCM has failed
 

Trouble Code: P1569



Variable Timing Control System Circuit Low Input

Possible Causes:



VTCS control circuit is open or shorted to ground
 
VTCS power circuit open between the solenoid and main relay
 
VTCS solenoid valve is damaged or has failed
 
PCM is damaged
 

Trouble Code: P1570



Variable Timing Control System Circuit High Input

Possible Causes:



VTCS control circuit is shorted to system power (B+)
 
VTCS solenoid valve is damaged or has failed
 
PCM is damaged
 

Trouble Code: P1608



PCM Output Device Circuit Malfunction

Possible Causes:



Output device (relay or solenoid) control circuit(s) shorted to ground between the device and the PCM
 
If none of the output device control circuits are shorted to ground (key on, voltage drop check), the PCM has failed
 

Trouble Code: P1631



Generator Output Signal (No Output)

Possible Causes:



Generator Terminal 'P' circuit is open or shorted to ground
 
Generator Terminal 'D' circuit is open or shorted to ground
 
Generator drive belt is cut or missing
 
Generator has failed (i.e., generator brushes or rectifier bridge)
 
PCM has failed
 

Trouble Code: P1632



Battery Voltage Monitor Circuit Malfunction

Possible Causes:



PCM Terminal '4O' is open or shorted to ground
 
Generator drive belt is cut or missing
 
Generator is damaged or has failed (i.e., the generator brushes or rectifier bridge has failed)
 
PCM has failed
 

Trouble Code: P1633



Battery Overcharge

Possible Causes:



Generator is damaged or has failed (in an overcharge mode)
 
PCM has failed
 

Trouble Code: P1634



Generator Battery Terminal Open Circuit Malfunction

Possible Causes:



Generator Battery Terminal circuit is open
 
Generator is damaged or has failed (i.e., no Generator output)
 
Battery has failed (it is unable to accept a charge)
 
PCM has failed
 

Trouble Code: P1751



Transmission Shift Solenoid 'A' Circuit Malfunction

Possible Causes:



SSA control circuit is open
 
SSA control circuit is shorted to system power (B+)
 
SSA is damaged or has failed
 
TCM has failed
 

Trouble Code: P1752



Transmission Shift Solenoid 'A' Circuit Malfunction

Possible Causes:



SSA solenoid control circuit is shorted to ground
 
SSA solenoid is damaged or has failed
 
TCM has failed
 

Trouble Code: P1756



Shift Solenoid B Circuit Open (ATX)

Possible Causes:



Shift solenoid B malfunction
 
Open circuit between shift solenoid connector and solenoid connector
 
Short to power between shift solenoid B and solenoid connector
 
Damaged connectors between shift solenoid B and TCM
 
TCM malfunction
 

Trouble Code: P1757



Transmission Shift Solenoid 'B' Circuit Malfunction

Possible Causes:



SSA solenoid control circuit is shorted to ground
 
SSA solenoid is damaged or has failed
 
TCM has failed
 

Trouble Code: P1794



Battery Direct To PCM Circuit Malfunction

Possible Causes:



KAM circuit is open (the problem may be intermittent)
 
KAM circuit is shorted to ground (KAM fuse is blown)
 
KAM circuit connection loose in wiring harness or at the PCM
 
PCM has failed
 

Trouble Code: SRS-01



SAS Control Module Connector Poor Connection

Possible Causes:



Poor connection of any SAS control module connectors
 
Malfunction of any SAS control module connectors
 
Open or short circuit in wiring harness between SAS control module and ground
 
SAS control module malfunction
 

Trouble Code: SRS-02



SAS Control Module

Possible Causes:



SAS CM malfunction
 

Trouble Code: SRS-03



Power Supply of SAS Control Module

Possible Causes:



Weak battery
 
Open or short circuit in wiring harness
 
Poor connection of connector
 
Damaged SAS unit
 

Trouble Code: SRS-06



Driver-side Air Bag Module System

Possible Causes:



Driver-side air bag module malfunction
 
Clock spring malfunction
 
Malfunction of connectors between clock spring and SAS control module
 
Open or short circuit in wiring harness between clock spring and SAS control module
 
SAS control module malfunction
 

Trouble Code: SRS-07



Passenger-side Air Bag Module System

Possible Causes:



Passenger-side air bag module malfunction
 
Malfunction of connector between passenger-side air bag module and SAS control module
 
Open or short circuit in wiring harness between passenger-side air bag module and SAS control module
 
SAS control module malfunction
 

Trouble Code: SRS-11



Driver-side Pre-tensioner Seat Belt System

Possible Causes:



Driver-side pre-tensioner seat belt malfunction
 
Malfunction of connectors between driver-side pre-tensioner seat belt and SAS control module
 
Open or short circuit in wiring harness between driver-side pre-tensioner seat belt and SAS control module
 
SAS control module malfunction
 

Trouble Code: SRS-12



Passenger-side Pre-tensioner Seat Belt System

Possible Causes:



Passenger-side pre-tensioner seat belt malfunction
 
Malfunction of connectors between passenger-side pre-tensioner seat belt and SAS control module
 
Open or short circuit in wiring harness between passenger-side pre-tensioner seat belt and SAS control module
 
SAS control module malfunction
 

Trouble Code: SRS-22



Driver-side Side Air Bag Sensor System (Internal Circuit Abnormal)

Possible Causes:

With side air bag:



Driver-side side air bag sensor malfunction
 
Open or short circuit in wiring harness between driver-side side air bag sensor and SAS control module
 
SAS control module malfunction
 



Malfunction of connector between SAS control module and ground
 
Open or short circuit in wiring harness between SAS control module and ground
 
SAS control module malfunction
 

Trouble Code: SRS-25



Driver-side Side Air Bag Sensor System (Communication Error)

Possible Causes:

With side air bag:



Driver-side side air bag sensor malfunction
 
Open or short circuit in wiring harness between driver-side side air bag sensor and SAS control module
 
SAS control module malfunction
 



Malfunction of connector between SAS control module and ground
 
Open or short circuit in wiring harness between SAS control module and ground
 
SAS control module malfunction
 

 
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