Saturn Ion - Recent Questions, Troubleshooting & Support - Page 7

It's called Brake Fluid Level Switch Try a auto salvage yard > Couple of buck's Brake System Indicator The instrument panel cluster (IPC) illuminates the brake indicator when the following occurs: • The body control module (BCM) detects that the park brake is engaged. The IPC receives a class 2 message from the BCM requesting illumination. If the vehicle is shifted out of park with the park brake engaged, the BCM activates an audible warning. • The body control module (BCM) detects a low brake fluid condition (signal circuit is low). The IPC receives a class 2 message from the BCM requesting illumination. • The IPC detects a low brake fluid condition (signal circuit is low). • The IPC performs the displays test at the start of each ignition cycle. The indicator illuminates for approximately 3 seconds.

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

sensor 2 is after the cat.

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.

First try to spay a liberal amount of PB Blaster into the switch around the key to free up jammed tumblers in order to release the ignition switch and allow the key to be removed. ANY ATTEMPT TO JURY RIG THE WIRING WILL RESULT IN TRIGGERING THE ANTI-THEFT FUNCTION OF THE ECU AND DISABLE THE VEHICLE. Simply disconnect the ground cable from the battery to shut off all power to the vehicle.

you should be addressing this to the service agent doing the recall he will know what the symptoms are

Looks like you will need to change the key and cylinder (lock assembly).

In the under hood fuse box ! It will be marked on the inside of the lid .

Take to your local auto parts, put the scanner on, there not allowed to erase the codes but you can do it with there help.

the electric steering column is going bad,you need a new steering column,,,typicial ion problem,youre gonna have to go to the dealer,,rather expensive for the parts, over $300