REMOTE STARTING SYSTEM
The Remote Starting System allows the vehicle to be started up to 300 feet (91 meters) away from the vehicle using the remote keyless entry key fob which is part of your ignition key. In order to remote start your vehicle, the hood, liftgate, and all of the doors must be closed. To remotely start your vehicle, press the "Remote Start" button twice within 5 seconds. To indicate that the vehicle is about to start, the parking lights will flash and the horn will sound briefly. Once the vehicle has started, the engine will run for 15 minutes. To cancel remote start, press the "Remote Start" button once. To enter the vehicle while the engine is running during a remote start, you must first unlock the vehicle using the "Unlock" button on the key fob. After the vehicle is unlocked, you have 60 seconds to enter the vehicle, insert the key into the ignition, and move it to the RUN position. Otherwise, the engine will cancel remote start and automatically turn off. Remote start will also cancel if any of the following occur
- If the engine stalls or RPM exceeds 2500.
- Any engine warning lamps come on.
- The hood is opened.
- The hazard switch is pressed.
- The transmission is moved out of P (Park).
- The brake pedal is pressed.
The vehicle can be started remotely up to a maximum of two times. The vehicle is also allowed a maximum of one failed start. This can occur when the remote start sequence was initiated but cancelled before the engine begins to crank or the engine stopped cranking without starting. After either of these conditions, or if the Vehicle Theft Alarm is alarming, or if the PANIC button was pressed, the vehicle must be reset by inserting a valid key into the ignition and moving it to the RUN position, then back to LOCK.
When you press the Keyless Go button (KIN Button), a request is sent to the Wireless Ignition Node (WIN) via the private Local Interface Network (LIN) data bus. Once the WIN receives the request from the KIN it then looks for the valid key via the Passive Entry Module (PEM) antennas. If the WIN detects a valid key, then the WIN sets the ignition position to START/CRANK.
The Totally Integrated Power Module (TIPM) then turns the ignition status to START/CRANK.
If conditions are correct to start, the Powertrain Control Module (PCM) turns On the high side of the starter relay and turns the ANL_LFT signal (the crank hold signal) to True. If the TIPM is still in START/CRANK, and the ANL_LFT signal is True, then the TIPM turns On the low side of the relay and the engine will start cranking.
Once the engine is started, the PCM deactivates the double start over ride. The TIPM will then deactivate the starter either when the engine starts or the maximum time has been reach for the tip start (10 sec for gas and 25 sec for diesel).
The WIN changes the ignition position to RUN if the start type is TIP start or the 2 second time expires or the PCM indicates the vehicle is not in park or neutral. The engine can be manually shut down by the driver with speeds over 5 MPH (8 KPH) in any gear.
REMOTE START SYSTEM
Before attempting to diagnose a problem with the remote starting system, first be sure the starter motor and starter solenoid are working properly. The starter should operate with the use of the standard ignition key in the ignition switch. Any starter or solenoid problems must be repaired first.
Also be sure the engine will easily start and run with the use of the standard ignition key in the ignition switch. Any engine running, idling or driveability problems must be repaired first.
Also note that the remote start system will automatically be cancelled if any of the following occur
- IF THE ENGINE STALLS OR RPM EXCEEDS 2500
- NORMAL TIME OUT RUN MODE (15 MINUTES)
- CUSTOMER MOVES IGNITION INTO RUN/START
- ANY VEHICLE DOOR AJAR
- TRUNK/LIFTGATE AJAR
- HOOD AJAR
- START COUNTER REACHED
- LOW RPM SHUTDOWN
- KEY IN IGNITION
- BRAKE PRESSED
- THE HAZARD SWITCH IS PRESSED
- NOT IN PARK OR NEUTRAL
- VEHICLE SPEED HIGH
- VTA ALARM TRIGGERED
- PANIC MODE ACTIVATED
- BATTERY VOLTAGE HIGH
- BATTERY VOLTAGE LOW
- LOSS OF BATTERY VOLTAGE
- MIL ON
- LOW OIL PRESSURE
- COOLANT TEMPERATURE HIGH
- CRANK NO START
- RKE OFF MESSAGE
- VEHICLE NOT CONFIGURED
- HOOD SWITCH NOT INSTALLED OR INOPERATIVE
- NO AUTOMATIC TRANSMISSION
- INVALID KEY
- IGNITION SNA
- IGNITION NOT IN LOCK
- VEHICLE IN SHIPPING MODE
- VEHICLE NOT PROGRAMMED
If all of the previous items checked OK, and the remote starting system will not operate. Refer to DIAGNOSIS AND TESTING .
STARTING SYSTEM
The battery, starting, and charging systems operate in conjunction with one another, and must be tested as a complete system. For correct starting/charging system operation, all of the components involved in these three systems must perform within specifications.
| CONDITION | POSSIBLE CAUSE | CORRECTION |
|---|---|---|
| STARTER FAILS TO OPERATE | 1. Battery discharged or inoperative | 1. Charge and test battery. Refer to DIAGNOSIS AND TESTING . Replace battery, if required. |
| 2. Starter motor or solenoid inoperative | 2. Test the starter motor and solenoid. Refer to STARTER, DIAGNOSIS AND TESTING . Replace starter motor, if required. | |
| 3. Starter relay inoperative | 3. See Wiring Information. Test and replace the starter relay, if required | |
| 4. Clutch pedal position switch inoperative (if equipped with manual transmission) | 4. See appropriate transmission information for Clutch Pedal Position Switch. Test and adjust or replace switch, if required. | |
| 5. Park/Neutral position switch inoperative (if equipped with automatic transmission) | 5. See appropriate transmission information for Park/Neutral Position Switch. Test and adjust or replace switch, if required. | |
| 6. Ignition switch inoperative | 6. Test the Ignition Switch and Key Lock Cylinder. Replace ignition switch if required. | |
| 7. Starting circuit wiring inoperative | 7. See Wiring Information. Test and repair starter feed and/or control circuits, if required. | |
| STARTER ENGAGES, BUT FAILS TO TURN ENGINE | 1. Battery discharged or inoperative | 1. Charge and test battery. Refer to DIAGNOSIS AND TESTING . Replace battery if required. |
| 2. Starter motor or solenoid inoperative | 2. Test the starter motor and solenoid. Refer to STARTER, DIAGNOSIS AND TESTING . Replace starter motor if required. | |
| 3. Starting circuit wiring inoperative | 3. See Wiring Information. Test and repair starter feed and/or control circuits, if required. | |
| 4. Engine seized | 4. See appropriate engine information . Test and repair engine as required. | |
| STARTER ENGAGES, BUT THEN DISENGAGES BEFORE ENGINE STARTS | 1. Starter motor or solenoid inoperative | 1. Test the starter motor and solenoid. Refer to STARTER, DIAGNOSIS AND TESTING . Replace starter motor, if required. |
| 2. Starter ring gear damaged | 2. Remove starter motor and inspect starter ring gear. Refer to STARTER, REMOVAL . Replace starter ring gear, if required. | |
| STARTER DOES NOT DISENGAGE | 1. Starter motor incorrectly installed or solenoid inoperative | 1. Inspect and test the starter motor and solenoid. Refer to STARTER, DIAGNOSIS AND TESTING . Replace starter motor, if required. |
| 2. Starter relay inoperative | 2. See Wiring Information. Test and replace the starter relay, if required. | |
| 3. Ignition switch inoperative | 3. Test the Ignition Switch and Key Lock Cylinder. Replace ignition switch, if required. |
STARTING SYSTEM DIAGNOSIS
| Starter Motor | |||
|---|---|---|---|
| Engine Application | 3.7L | 4.7L/5.7L/6.1L Gas Powered | 3.0L Diesel |
| Power Rating | 1.2 Kilowatt | 1.4 Kilowatt / 1.9 Horsepower | |
| * Cranking Amperage Draw Test | 100 - 200 Amperes | 125 - 250 Amperes | 450 - 700 Amperes |
| * Test at operating temperature. Cold engine, tight (new) engine, or heavy oil will increase starter amperage draw. | |||
Each time the START/STOP button is pressed, a signal is transmitted from the Wireless Ignition Node (WIN) over the Controlled Area Network (CAN) data bus to the Passive Entry Module (PEM), where the signal is then wirelessly transmitted to the FOB with Integrated Key (FOBIK). The signal is then sent back through the PEM over the CAN data bus and back to the WIN for authentication and location. After a valid FOBIK is detected inside the vehicle the ignition state can be changed.
The ignition system for the Keyless Go (KG)feature has three states, similar to a conventional ignition system. These ignition states are OFF, ACCESSORY, and ON. Each time the START/STOP button is pressed and released the ignition state changes to the next ignition state as follows, from OFF to ACCESSORY, from ACCESSORY to ON, and from ON back to OFF.
To start the engine, the transmission must be in park or neutral. From any ignition state, press the brake pedal and press and release the START/STOP button and the engine attempts to start. The starter will continues to crank until the engine starts. If the engine fails to start, the starter will disengages automatically in 10 seconds. If you wish to stop the cranking of the engine before the engine starts, press and release the START/STOP button again.
To shut off the engine while the transmission is in PARK press and release the START/STOP button and the engine shuts off. To shut off the engine while the transmission is out of PARK you must press and hold the START STOP button. The ignition state will be changes to the ACCESSORY state if the transmission is not in PARK and to the OFF state if the transmission is in PARK motion.
For information regarding an inoperative START/STOP button, refer to BUTTON, START/STOP, DIAGNOSIS AND TESTING .
If the START/STOP button is inoperative, it may be caused by an invalid FOB with Integrated Key (FOBIK), or a FOBIK with a dead battery. To determine the cause of the problem, refer to BUTTON, START/STOP, STANDARD PROCEDURE .
If the START/STOP button is inoperative remove the Engine START/STOP Button and insert the FOB with Integrated Key (FOBIK) in the receptacle. Refer to BUTTON, START/STOP, REMOVAL . If the FOBIK is not valid the message center displays WRONG KEY. If no message is displayed, it should still be possible to operate the vehicle by turning the FOBIK to the desired ignition position. The FOBIK battery needs to be replaced for the Keyless GO (KG) to operate. For further information regarding KG functionality, refer to the appropriate diagnostic information.
NO TITLE
Note. The START/STOP button should only be removed or installed with the ignition off.
Scheme 18
- Insert a small screwdriver or trim tool under the chrome bezel ring (3) at the bottom of the button (2), and gently pry the button (2) loose.
- Remove the button (2) from the receptacle on the instrument panel (1).
Note. The START/STOP button should only be removed or installed with the ignition off.
- Position the START/STOP button (2) with the lettering in the horizontal position.
- Insert the button into the receptacle on the instrument panel (1) and gently press on the chrome bezel ring (3) to seat the button in the receptacle.
KEYLESS GO SYSTEM
The Keyless Go (KG) system changes the state of the vehicle's ignition between the OFF, ACCESSORY, RUN, and START states using a momentary button rather than a conventional key.
The KG system includes the following major components, which are described in further detail elsewhere in this service information
- FOB with Integrated Key (FOBIK) - Refer to «KEY, TRANSPONDER, DESCRIPTION»(ref-465958-S24742351352012042300000) .
- Passive Entry Antenna - Multiple Low Frequency (LF) antennas are located throughout the passenger compartment. Refer to «ANTENNA, PASSIVE ENTRY, DESCRIPTION»(ref-465957-S19339872912012042300000) .
- Passive Entry Module (PEM) - The module is located on the outboard end of the air conditioning and heater unit blower housing beneath the passenger side end of the instrument panel. Refer to «MODULE, PASSIVE ENTRY, DESCRIPTION»(ref-465939-S00470172282012042300000) .
- START/STOP button - Located on the instrument panel, inserted into the Wireless Ignition Node (WIN) Refer to «BUTTON, START/STOP, DESCRIPTION»(ref-465961-S23756138672012042300000) .
- Wireless Ignition Node (WIN) - Located to the right of the steering column and is concealed beneath the instrument panel. Refer to «RECEIVER, WIRELESS IGNITION NODE, DESCRIPTION»(ref-465939-S00520704492012042300000) .
The Keyless GO (KG) system replaces the conventional key and ignition switch with a momentary START/STOP button and a FOB with Integrated Key (FOBIK). When the operator presses the START/STOP button, the FOBIK is checked for authenticity through the Passive Entry Module (PEM). If recognized, the KG system, allows the ignition state to be changed by the operator between the OFF, ACCESSORY, RUN, and START states. This causes changes in the ignition status signals on the vehicle's Controller Area Network (CAN) data buses and hardwired outputs.
If the Keyless Go (KG) feature is inoperative, it may be caused by an invalid FOB with Integrated Key (FOBIK), or a FOBIK with a dead battery. Additionally if the Remote Keyless Entry (RKE) is inoperative, the KG will also be inoperative.
The message center dislplays the following messages when certain conditions are met.
- Key FOB Battery Low - Displayed when the battery in the FOBIK is low. At this point the Keyless Go function should still operate, but the battery should be replaced soon.
- Key FOB Not Detected - Displayed when a valid FOBIK could not be detected inside the vehicle
- Push Pedal + Button to Start - Displayed when one enters the vehicle.
- Service Keyless System - Displayed when there is a problem with the KGsystem.
- Vehicle Not in Park - Displayed when shutting off the vehicle while the transmission is not in the PARK position.
For further information, refer to the proper diagnostic information.
STARTER SOLENOID
Note. Certain vehicles with certain engines may require starter motor removal for the following test.
Scheme 19
- If necessary, remove starter motor from vehicle. Refer to «REMOVAL»(ref-465961-S35851771622012042300000) .
- Disconnect solenoid connector wiring from starter motor.
- Check for continuity between solenoid terminal (2) and solenoid case (3). There should be continuity. If not OK, replace faulty starter motor assembly.
Scheme 20
- Disconnect and isolate the negative battery cable.
- Remove the driver side engine mount (4) and engine mount bracket (1). Refer to «INSULATOR, ENGINE MOUNT, LEFT, REMOVAL»(ref-465933-S06441282232012042300000) or «INSULATOR, ENGINE MOUNT, RIGHT, REMOVAL»(ref-465933-S09189642952012042300000) or «INSULATOR, ENGINE MOUNT, FRONT, REMOVAL, 5.7L»(ref-465934-S42278273292012042300000) .
- Remove the battery positive cable wire harness connector eyelet from solenoid battery terminal stud.
- Disconnect the solenoid wire from the starter motor.
- Remove the two mounting bolts (2).
- Remove the starter motor.
Scheme 21
- Disconnect and isolate the negative battery cable.
- Raise and support the vehicle.
- Note: If equipped with 4WD and certain transmissions, a support bracket is used between front axle and side of transmission. Remove 2 support bracket bolts at transmission. Pry support bracket slightly to gain access to lower starter mounting bolt.
- Remove the two mounting bolts (2).
- Move the starter motor towards the front of vehicle far enough for the nose of the starter pinion housing to clear the housing. Always support the starter motor (1) during this process, do not let the starter motor hang from the wire harness.
- Tilt the nose downwards and lower the starter motor far enough to access and remove the nut that secures the battery positive cable wire harness connector eyelet to the solenoid battery terminal stud. Do not let the starter motor hang from the wire harness.
- Remove the battery positive cable wire harness connector eyelet from solenoid battery terminal stud.
- Disconnect the battery positive cable wire harness connector from the solenoid terminal connector receptacle.
- Remove the starter motor.
3.6L 4X2
- Position the starter motor to the engine.
- Install and tighten both mounting bolts (2). Torque the bolts to 68 N.m (50 ft. lbs.).
- Connect the solenoid wire to the starter motor.
- Position the battery cable to the solenoid stud. Install and tighten battery cable eyelet nut. Torque the nut to 25 N.m (19 ft. lbs.).
- Install the driver side engine mount (4). Refer to «INSULATOR, ENGINE MOUNT, LEFT, INSTALLATION»(ref-465933-S22973490682012042300000) or «INSULATOR, ENGINE MOUNT, RIGHT, INSTALLATION»(ref-465933-S13260189432012042300000) or «INSULATOR, ENGINE MOUNT, FRONT, INSTALLATION, 5.7L»(ref-465934-S41389089882012042300000) .
- Connect the negative battery cable.
5.7L
- Connect the solenoid wire to the starter motor (snaps on).
- Position the battery cable to the solenoid stud. Install and tighten the battery cable eyelet nut. Torque nut to 25 N.m (19 ft. lbs.). Do not allow the starter motor to hang from the wire harness.
- Position the starter motor (1) to the engine.
- If equipped with automatic transmission, slide cooler tube bracket into position.
- Install and tighten both mounting bolts (2). Torque bolts to 68 N.m (50 ft. lbs.).
- Lower the vehicle.
- Connect the negative battery cable.