Top 20 2003 Saturn ION Questions & Answers

have scanned for trouble code sounds like limp mode --or torque converter

Did you swap PCM/ECM - engine computers ? There is no security reset . Has nothing to do with the anti-theft , anti-theft on saturn vehicles does not disable the starter .

You will get the wiring diagram from the given link i had tried this link before and they provide factory original manuals https://toolsnyou.com

How to voltage drop test starter motor circuit Looking at a wiring diagram an testing the starter circuit with a DMM - digital multi-meter is the way to find the problem . Free wiring diagram's here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size. Under system click on engine then under subsystem click on starting . Click the search button then the blue link . Looking at the diagram you will see this starting circuit is computer controlled . Ignition switch is a low voltage input to the BCM - body control module. A message to the ECM - engine computer from the BCM requesting a start over the serial data network (class2) will energize the relay sending B+ voltage to the S terminal on the starter solenoid . Your best bet mite be to have it towed to a qualified repair shop.

PWR STR message Power Steering: Refer to Power Steering System Description and Operation in Power Steering System The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, not the EPS motor are serviced separately from each other or from the steering column. Any EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly. Having a qualified repair shop check it out would be your best bet ! Do you know what DTC'S are ? diagnostic trouble codes DTC C0000 DTC C0475 DTC C0476 DTC C0545 DTC C0847 DTC C0848 DTC C0896 DTC C0899 DTC C0900 Chevy Cobalt Trac Light On Harsh Shifting and NO COM All Modules Your saturn is the same as the cobalt . You have a computer problem or serial data network .

no get a good working engine from the wreckers/junk yard because a new engine will go the same way of the old engine if you are to careless to check the oil

There are no saturn dealers any more . Take it to Chevy , buick , or cadillac dealer . can not reset the computer. ?????? There is no reset for ant-theft system . Is the security light on ? Have codes read ,fixing the problem will turn off the light an reset the system .

check the lac sensor

Something to do with the PASSLOCK system - anti-theft . Loose passlock sensor or key . Thing's do wear out after time . The passlock sensor is part of the ignition lock cylinder housing .There is also a magnet in the lock cylinder an when you turn the key the magnet rotates past the sensor causing a voltage signal that the module in charge (BCM) reads ,worn or sloppy fitting parts are probably the problem . Your vehicle is 14 years old , just think of how many times the key was stuck into the ignition switch an turned . Don't know of any by-pass fixes for this , look on line . Or you probably would have to replace the whole lock an lock cylinder .

sensor 2 is after the cat.

Check the battery terminal connections first. Make sure that they are clean and tight. Most likely the issue

First of all your service light came on so give it a service then have the service light reset then check the thermastac, water levels and the choke is working properly and all the elecric working parts are good

Depending on where it is located and how much has to be taken apart to get to it. But that sounds awful high for the job to me.

The transmission control module (TCM) uses the controller area network (CAN) to signal the engine control module (ECM) that the TCM is requesting malfunction indicator lamp (MIL) illumination. This happens when the TCM has determined that a failure that affects emissions has occurred in the transmission control system. When the ECM receives the correct message from the TCM, DTC P0700 will set. Circuit Description The engine coolant temperature (ECT) sensor is a variable resistor, that measures the temperature of the engine coolant. The ECT sensor has a signal circuit and a low reference circuit. The engine control module (ECM) supplies 5 volts to the ECT signal circuit, and a ground for the ECT low reference circuit. When the ECT is cold, the sensor resistance is high. When the ECT increases, the sensor resistance decreases. With high sensor resistance, the ECM detects a high voltage on the ECT signal circuit. With lower sensor resistance, the ECM detects a lower voltage on the ECT signal circuit. If the ECM detects an excessively high ECT signal voltage, which is a low temperature indication, DTC P0118 sets. Diagnostic Aids • If a short to a separate 5-volt source occurs this DTC may set. • Use the Temperature vs Resistance table to test the ECT sensor at various temperature levels to evaluate the possibility of a skewed sensor. A skewed sensor could result in poor driveability concerns Sounds like you need a new coolant temp. sensor , but test it ! Videos on youtube showing how to do it . Circuit Description To improve shift feel, the transmission control module (TCM) may request that the engine control module (ECM) reduce engine torque during shift events. When such a request is received, the ECM responds by retarding the base ignition timing and notifying the TCM that the request has succeeded. If the ECM is unable to comply with the request, the ECM sends the TCM a message that the request has failed. The torque reduction request is sent to the ECM through a communication network called the controller area network (CAN). Two circuits are used to communicate CAN data between the ECM and TCM. A fault in the CAN will not cause DTC P1781 to set by itself. If a CAN fault occurs, other DTCs will set before DTC P1781. When the TCM receives a torque reduction failure message from the ECM, then DTC P1781 will set. DTC P1781 is a type A DTC.

Could have connection issues at the BCM - body control module , lose ground . The BCM controls all the thing's your have problems with . Turn Signal Lamps When the turn signal switch is place in either the right or left turn position, the turn/hazard request circuit is pulled low, through a resistor. The body control module (BCM) uses the resistors to determine if the left or right turn signals have been requested. The BCM then supplies an ON-OFF voltage to the turn signal lamps and turn signal indicator on the selected side of the vehicle. The turn signals receive a ground at G101, G401, or G403. When the ignition switch is turned to the ON position, the vacuum fluorescent (VF) display (radio) turns on at maximum brightness. When the park lamps are ON all incandescent back lighting turn ON at the dimming level indicated by the IP dimmer switch. At the same time all vacuum fluorescent (VF) displays dim to match the indicated dimming level. When the headlamp switch is placed in the PARK position, the park lamp supply voltage circuit provides an input to the body control module (BCM). The BCM then supplies voltage to the instrument panel dimmer switch through the instrument panel dimming lamps control circuit. The setting of the instrument panel dimmer switch determines the amount of voltage that the instrument panel dimmer switch supplies to the BCM through the instrument panel dimming lamps low reference circuit. The BCM then sends a pulse width modulated (PWM) voltage to all the interior lamps. All the vacuum florescent (VF) and incandescent back lighting lamps are provided a specific voltage and are then grounded. When the headlight switch is turned to the PARK or HEADLAMP position, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. When the IP dimmer switch is moved from MIN to MAX, all vacuum fluorescent (VF) displays, as well as all incandescent back lighting respond from Minimum intensity to maximum brightness in response to the IP dimmer switch. Engine Coolant Indicator(s) LOW COOLANT LEVEL The IPC illuminates the low coolant warning indicator when any of the following occur: • The BCM detects a low coolant level condition for at least 30 seconds. The IPC receives a class 2 message from the BCM requesting illumination. • The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds . The thing to do first would be to hook up a factory or professional type scan tool an check for Instrument cluster or BCM DTC'S - diagnostic trouble codes . Then checking connection 's at the BCM , testing power an grounds . ECM Inputs and Outputs Diagnosis Open Circuit Detection Wiring Diagram 1

Linkage problem . Access the motor and see if the linkage came off . Watch this video , may help you out . I know it's not a saturn ,still a GM vehicle . Pontiac G6 Wiper Fix and other GM cars

The steering gear box has an adjustment screw on the top cover. Loosen the lock nut and turn the screw clockwise until the slop is reduced. Jack the front end up so both wheels turn freely. Push the wheel right and left while watching the suspension components. If they move up and down. The control arm and ball joints need replacing. Have it done at a good shop that does alignments.

You have air getting into the clutch hydraulic system, this is due to a faulty slave or master cylinder or both.

don't spend any money until you have the fault codes read to see if any thing is wrong reason --- ECM does a tune up on the car every second that it is running and changes air/fuel mixtures to maintain optimum performance IT gets that information from constant reports from sensors and when a sensor goes outside set parameters, it reports as a fault code PLugs do not burn the center electrode as of days of old and will generally last the life of the engine so you have two options -=--waste money in fixing what don't need to be fixed or read the fault codes and fix only what shows up

This is a second class answer. (I say that because throwing parts at a car is not the best way to fix it, it is better to have it diagnosed by a professional mechanic.) I would start by determining if there is a wiper relay, perhaps under the hood in the black plastic fuse/relay box. It should be cheaper than a new wiper motor. If that does not fix it, you should probably need a motor, new or used. God bless your efforts.