Starting - Service Information Jeep Grand Cherokee WK2

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

1. If the engine stalls or RPM exceeds 2500.
2. Any engine warning lamps come on.
3. The hood is opened.
4. The hazard switch is pressed.
5. The transmission is moved out of P (Park).
6. 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

1. IF THE ENGINE STALLS OR RPM EXCEEDS 2500
2. NORMAL TIME OUT RUN MODE (15 MINUTES)
3. CUSTOMER MOVES IGNITION INTO RUN/START
4. ANY VEHICLE DOOR AJAR
5. TRUNK/LIFTGATE AJAR
6. HOOD AJAR
7. START COUNTER REACHED
8. LOW RPM SHUTDOWN
9. KEY IN IGNITION
10. BRAKE PRESSED
11. THE HAZARD SWITCH IS PRESSED
12. NOT IN PARK OR NEUTRAL
13. VEHICLE SPEED HIGH
14. VTA ALARM TRIGGERED
15. PANIC MODE ACTIVATED
16. BATTERY VOLTAGE HIGH
17. BATTERY VOLTAGE LOW
18. LOSS OF BATTERY VOLTAGE
19. MIL ON
20. LOW OIL PRESSURE
21. COOLANT TEMPERATURE HIGH
22. CRANK NO START
23. RKE OFF MESSAGE
24. VEHICLE NOT CONFIGURED
25. HOOD SWITCH NOT INSTALLED OR INOPERATIVE
26. NO AUTOMATIC TRANSMISSION
27. INVALID KEY
28. IGNITION SNA
29. IGNITION NOT IN LOCK
30. VEHICLE IN SHIPPING MODE
31. 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.

STARTING SYSTEM DIAGNOSIS

COLD CRANKING TEST

Note. Refer to appropriate Wiring Information article for complete starter wiring circuit diagrams.

Scheme 1

1. Fully charge and load-test the battery. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/charging-system/#battery-system-service-information) .
2. Connect volt-ampere tester leads (1 and 2 to the battery terminals. Connect volt-ampere tester lead (3) around the positive battery cable. See instructions provided by manufacturer of volt-ampere tester being used. Note: Certain diesel equipped models use dual batteries. If equipped with dual battery system, tester should be connected to battery on left side of vehicle only. Also, tester current reading must be taken from positive battery cable lead that connects to starter motor.
3. Place transmission in Park or Neutral with the parking brake set (depending on transmission application).
4. If equipped with manual transmission, block clutch pedal in fully depressed position.
5. Verify that all lamps and accessories are turned off.
6. To prevent a gasoline engine from starting, remove Automatic ShutDown (ASD) relay. To prevent a diesel engine from starting, remove Fuel Pump Relay. Refer to appropriate Wiring Information article for relay locations. WARNING: Attempt to start engine a few times before proceeding with following step. NOTE: A cold engine will increase starter current (amperage) draw reading, and reduce battery voltage reading.
7. Rotate and hold ignition switch in Start position. Note cranking voltage and current (amperage) draw readings shown on volt-ampere tester. If voltage reads below 9.6 volts, refer to «STARTER , DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) . If starter motor is OK, refer to appropriate Engine Mechanical article. If starter motor is not OK, replace the starter motor. Refer to «STARTER , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) . Refer to Feed Circuit Test if voltage reads above 9.6 volts and current (amperage) draw reads below specifications. Refer to Feed Circuit Test if voltage reads 12.5 volts or greater and starter motor does not turn or turns very slowly.

FEED CIRCUIT TEST

Note. Refer to appropriate Wiring Information article for complete starter wiring circuit diagrams.

The starter feed circuit test (voltage drop method) will determine if there is excessive resistance in high-amperage feed circuit.

When performing these tests, it is important to remember that voltage drop is giving an indication of resistance between two points at which voltmeter probes are attached.

Example: When testing resistance of positive battery cable, touch voltmeter leads to positive battery cable clamp and cable connector at starter solenoid. If you probe positive battery terminal post and cable connector at starter solenoid, you are reading combined voltage drop in positive battery cable clamp-to-terminal post connection and positive battery cable.

The following procedure requires a voltmeter accurate to 1/10 (0.10) volt. Before proceeding, be certain that the following are accomplished

1. Fully charge and load-test the battery. Refer to «DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/charging-system/#battery-system-service-information) .
2. Place transmission in Park or Neutral with the parking brake set (depending on transmission application).
3. If equipped with manual transmission, block clutch pedal in fully depressed position.
4. Verify that all lamps and accessories are turned off.
5. To prevent a gasoline engine from starting, remove Automatic ShutDown (ASD) relay. To prevent a diesel engine from starting, remove Fuel Pump Relay. Refer to appropriate Wiring Information article for relay locations.

Scheme 2

Note. Certain diesel equipped models use dual batteries. If equipped with dual battery system, this procedure must be performed twice, once for each battery.

Scheme 3

Scheme 4

Scheme 5

Scheme 6

1. Connect positive lead of voltmeter (1) to negative battery cable terminal post. Connect negative lead of voltmeter to negative battery cable clamp. Rotate and hold ignition switch in Start position. Observe voltmeter. If voltage is detected, correct poor contact between cable clamp and terminal post. 1 - VOLTMETER 2 - BATTERY NOTE: Certain diesel equipped models use dual batteries. If equipped with dual battery system, this procedure must be performed twice, once for each battery.
2. Connect positive lead of voltmeter to positive battery terminal post. Connect negative lead of voltmeter to battery positive cable clamp. Rotate and hold ignition switch in Start position. Observe voltmeter. If voltage is detected, correct poor contact between cable clamp and terminal post. 1 - BATTERY 2 - VOLTMETER 3 - STARTER MOTOR NOTE: Certain diesel equipped models use dual batteries. If equipped with dual battery system, this procedure must be performed twice, once for each battery.
3. Connect voltmeter (2) to measure between positive terminal post on battery (1) and the battery terminal stud on the starter solenoid (3). Rotate and hold ignition switch in Start position. Observe voltmeter. If reading is above 0.2 volt, clean and tighten battery cable connection at solenoid and repeat test. If reading is still above 0.2 volt, replace the positive battery cable. 1 - VOLTMETER 2 - BATTERY 3 - ENGINE GROUND NOTE: Certain diesel equipped models use dual batteries. If equipped with dual battery system, this procedure must be performed twice, once for each battery.
4. Connect voltmeter (1) to measure between negative terminal post on battery (2) and a good clean ground on engine block (3). Rotate and hold ignition switch in Start position. Observe voltmeter. If reading is above 0.2 volt, clean and tighten negative battery cable attachment on engine block and repeat test. If reading is still above 0.2 volt, replace the negative battery cable. 1 - STARTER MOTOR 2 - BATTERY 3 - VOLTMETER NOTE: Certain diesel equipped models use dual batteries. If equipped with dual battery system, this procedure must be performed twice, once for each battery.
5. Connect positive lead of voltmeter (3) to starter housing (1). Connect negative lead of voltmeter to negative terminal post on battery (2). Rotate and hold ignition switch in Start position. Observe voltmeter. If reading is above 0.2 volt, correct poor starter to engine block ground contact.
6. If equipped with dual battery system (certain diesel equipped models), connect positive lead of voltmeter to positive battery cable clamp on battery located on left side of vehicle. Connect negative lead of voltmeter to positive battery terminal post on battery located on right side of vehicle. Rotate and hold ignition switch in Start position. Observe voltmeter. If reading is above 0.2 volt, clean and tighten battery cables at both batteries and repeat test. If reading is still above 0.2 volt, replace positive battery cable.
7. If resistance tests detect no feed circuit problems, inspect and test the starter motor and solenoid. Refer to «STARTER , DIAGNOSIS AND TESTING»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) .

TORQUE SPECIFICATIONS

Scheme 7

The Remote Start Antenna Module Assembly consists of an electrical connection to the Wireless Ignition Node (WIN) (1), a length of coax cable (2), mounting clips, or tie wraps (3) and (4), and a control module/antenna (5).

Scheme 8

The Remote Start Antenna Module Assembly consists of an electrical connection to the Wireless Ignition Node (WIN) (1), a length of coax cable (2), mounting clips or tie wraps (3) and (4), and a control module/antenna (5).

The control module is located between the passenger side air bag and the glove box liner. The module electrical connector plugs into the WIN attached to the ignition switch located near the right side of the steering column.

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

1. Disconnect and isolate negative cable from battery.
2. Remove the drivers scuff plate. Refer to «PLATE, SCUFF, DOOR , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) . NOTE: Passenger side shown in illustration, drivers side similar.
3. Remove the drivers cowl trim panel. Refer to «PANEL, COWL TRIM, SIDE , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
4. Remove the drivers side silencer pad.
5. Remove the steering column opening cover. Refer to «COVER, STEERING COLUMN OPENING , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
6. Remove the right side knee blocker support bracket.
7. Remove the glovebox. Refer to «GLOVE BOX, INSTRUMENT PANEL , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
8. Remove the glovebox liner.
9. Remove the instrument panel center bezel. Refer to «BEZEL, INSTRUMENT PANEL, CENTER , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
10. Through the steering column opening disconnect the Wireless Ignition Node (WIN) antenna connector (1) from the WIN (2).
11. Unclip the two WIN antenna (2) harness clips (1) from the support.
12. Through the glove box opening (2) release the two antenna harness clips (1) from the back of the instrument panel. NOTE: The antenna is located between the passenger side airbag (3) and the glove box opening support (4).
13. Remove the retainers (1) from the remote start antenna (2).
14. Gently pull the cable out from behind the instrument panel.

INSTALLATION

1. Route the cable behind the center stack of the instrument panel.
2. Remove the retainers (1) from the remote start antenna (2).
3. Through the glove box opening (2) install the two antenna harness clips (1) from the back of the instrument panel.
4. Clip the two WIN antenna (2) harness clips (1) to the support.
5. Through the steering column opening connect the Wireless Ignition Node (WIN) antenna connector (1) from the WIN (2).
6. Install the instrument panel center bezel. Refer to «BEZEL, INSTRUMENT PANEL, CENTER , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
7. Install the glovebox liner.
8. Install the glovebox. Refer to «GLOVE BOX, INSTRUMENT PANEL , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
9. Install the right side knee blocker support bracket.
10. Install the steering column opening cover. Refer to «COVER, STEERING COLUMN OPENING , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
11. Install the drivers side silencer pad. NOTE: Passenger side shown in illustration, drivers side similar.
12. Install the drivers cowl trim panel. Refer to «PANEL, COWL TRIM, SIDE , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
13. Install the drivers scuff plate. Refer to «PLATE, SCUFF, DOOR , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/gauges-instrument-panels/#body-interior-exterior) .
14. Connect the negative battery cable.

Scheme 17

The START/STOP button is located on the instrument panel, inserted into the Wireless Ignition Node (WIN) next to the steering column. The START/STOP button is the momentary push button used to change the vehicle's ignition states, instead of the conventional key and lock cylinder. The START/STOP button can be removed and the FOB with Integrated Key (FOBIK) can be used in its place, in a similar manner to a conventional key.

START/STOP BUTTON

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 .

DIAGNOSIS AND TESTING - STOP START BUTTON

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 .

STANDARD PROCEDURE - STARTING ENGINE WITHOUT STOP START BUTTON

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 Electrical Diagnostic article.

Note. The START/STOP button should only be removed or installed with the ignition off.

Scheme 18

1. 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.
2. 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.

1. Position the START/STOP button (2) with the lettering in the horizontal position.
2. 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.

DESCRIPTION

The starter relay is an electromechanical device that switches battery current to the pull-in coil of the starter solenoid when the ignition switch is turned to the Start position. The starter relay is located in the Power Distribution Center (PDC) in the engine compartment. Refer to the power distribution center cover for relay identification and location.

The starter relay is a International Standards Organization (ISO) relay. Relays conforming to ISO specifications have common physical dimensions, current capacities, terminal patterns, and terminal functions.

The starter relay cannot be repaired or adjusted. If faulty or damaged, it must be replaced.

OPERATION

The ISO relay consists of an electromagnetic coil, a resistor or diode, and three (two fixed and one movable) electrical contacts. The movable (common feed) relay contact is held against one of the fixed contacts (normally closed) by spring pressure. When electromagnetic coil is energized, it draws the movable contact away from normally closed fixed contact, and holds it against the other (normally open) fixed contact.

When electromagnetic coil is de-energized, spring pressure returns movable contact to normally closed position. The resistor or diode is connected in parallel with electromagnetic coil within relay, and helps to dissipate voltage spikes produced when coil is de-energized.

REMOVAL

The starter relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for relay location.

1. Disconnect and isolate negative battery cable.
2. Remove cover from Power Distribution Center (PDC) for relay identification and location.
3. Remove starter relay from PDC.
4. Check condition of relay terminals and PDC connector terminals for damage or corrosion. Repair if necessary before installing relay.
5. Check for pin height (pin height should be the same for all terminals within the PDC connector). Repair if necessary before installing relay.

1. Push down firmly on starter relay until terminals are fully seated into PDC receptacle.
2. Install PDC cover.
3. Connect battery cable.

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

1. FOB with Integrated Key (FOBIK) - Refer to «KEY, TRANSPONDER , DESCRIPTION»(/jeep/grand-cherokee/wk2-2010-2013/remont/door-locks-anti-theft-systems/#vehicle-theft-security-service-information) .
2. Passive Entry Antenna - Multiple Low Frequency (LF) antennas are located throughout the passenger compartment. Refer to «ANTENNA, PASSIVE ENTRY , DESCRIPTION»(/jeep/grand-cherokee/wk2-2010-2013/remont/door-locks-anti-theft-systems/#power-locks-service-information) .
3. 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»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) .
4. START/STOP button - Located on the instrument panel, inserted into the Wireless Ignition Node (WIN). Refer to «BUTTON, START/STOP , DESCRIPTION»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) .
5. 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»(/jeep/grand-cherokee/wk2-2010-2013/remont/communication-devices/#electronic-control-modules-service-information) .

KEYLESS GO SYSTEM OPERATION

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 displays the following messages when certain conditions are met.

1. 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.
2. Key FOB Not Detected - Displayed when a valid FOBIK could not be detected inside the vehicle
3. Push Pedal + Button to Start - Displayed when one enters the vehicle.
4. Service Keyless System - Displayed when there is a problem with the KGsystem.
5. Vehicle Not in Park - Displayed when shutting off the vehicle while the transmission is not in the PARK position.

For further information, refer to appropriate Electrical Diagnostic article.

DIAGNOSIS AND TESTING - STARTER MOTOR

Note. This test can only be performed with starter motor removed from vehicle.

Correct starter motor operation can be confirmed by performing the following free running bench test. Refer to SPECIFICATIONS .

1. Remove starter motor from vehicle. Refer to «REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) .
2. Mount starter motor securely in a soft-jawed bench vise. The vise jaws should be clamped on the mounting flange of starter motor. Never clamp on starter motor by field frame.
3. Connect a suitable volt-ampere tester and a 12-volt battery to starter motor in series, and set ammeter to 100 ampere scale. See instructions provided by manufacturer of volt-ampere tester being used.
4. Install jumper wire from solenoid terminal to solenoid battery terminal. The starter motor should operate. If starter motor fails to operate, replace faulty starter motor assembly.
5. Adjust carbon pile load of tester to obtain free running test voltage. Refer to appropriate Electrical Diagnostic article for starter motor free running test voltage specifications.
6. Note reading on ammeter and compare reading to free running test maximum amperage draw. Refer to appropriate Electrical Diagnostic article for starter motor free running test maximum amperage draw specifications.
7. If ammeter reading exceeds maximum amperage draw specification, replace faulty starter motor assembly.

STARTER SOLENOID

Note. Certain vehicles with certain engines may require starter motor removal for the following test.

Scheme 19

1. If necessary, remove starter motor from vehicle. Refer to «REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/starter/#starting-service-information) .
2. Disconnect solenoid connector wiring from starter motor.
3. 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

Scheme 21

1. Disconnect the negative battery cable.
2. Remove the oil cooler (2). Refer to «COOLER, OIL , REMOVAL»(ref-466389-S16629651562012042500000) .
3. Remove the B+ battery cable retainer and remove the B+ battery cable (2).
4. Disconnect the solenoid connector (1)
5. Remove the retainers and remove the starter (3).

Scheme 22

1. Disconnect and isolate the negative battery cable.
2. Remove the driver side engine mount (4) and engine mount bracket (1). Refer to «INSULATOR, ENGINE MOUNT, LEFT , REMOVAL»(/jeep/grand-cherokee/wk2-2010-2013/remont/mechanical/#36l-engine-service-information) .
3. Remove the battery positive cable wire harness connector eyelet from solenoid battery terminal stud.
4. Disconnect the solenoid wire from the starter motor.
5. Remove the two mounting bolts (2).
6. Remove the starter motor.

Scheme 23

1. Disconnect and isolate the negative battery cable.
2. Raise and support the vehicle.
3. 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.
4. Remove the two mounting bolts (2).
5. 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.
6. 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.
7. Remove the battery positive cable wire harness connector eyelet from solenoid battery terminal stud.
8. Disconnect the battery positive cable wire harness connector from the solenoid terminal connector receptacle.
9. Remove the starter motor.

3.0L DIESEL

1. Position the starter and install the mounting retainers. Tighten to 54 N.m (40 ft. lbs.).
2. Connect the solenoid connector (1)
3. Install the B+ cable to starter solenoid stud. Tighten to 10 N.m (89 in. lbs.).
4. Install the oil cooler (2). Refer to «COOLER, OIL , INSTALLATION»(ref-466389-S38823074112012042500000) .
5. Connect the negative battery cable.

3.6L 4X2

1. Position the starter motor to the engine.
2. Install and tighten both mounting bolts (2). Torque the bolts to 68 N.m (50 ft. lbs.).
3. Connect the solenoid wire to the starter motor.
4. 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.).
5. Install the driver side engine mount (4). Refer to «INSULATOR, ENGINE MOUNT, LEFT , INSTALLATION»(/jeep/grand-cherokee/wk2-2010-2013/remont/mechanical/#36l-engine-service-information) .
6. Connect the negative battery cable.

5.7L

1. Connect the solenoid wire to the starter motor (snaps on).
2. 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.
3. Position the starter motor (1) to the engine.
4. If equipped with automatic transmission, slide cooler tube bracket into position.
5. Install and tighten both mounting bolts (2). Torque bolts to 68 N.m (50 ft. lbs.).
6. Lower the vehicle.
7. Connect the negative battery cable.

TIP Start system prevents double starts and preserves battery, ignition and gear life

Do not press the accelerator. Use the Fob with Integrated Key to briefly turn the ignition switch to the START position and release it as soon as the starter engages. The starter motor will continue to run, and it will disengage automatically when the engine is running. If the engine fails to start, the starter will disengage automatically in 10 seconds. If this occurs, turn the ignition switch to the LOCK position, wait 10 to 15 seconds, then repeat the normal starting procedure.

See also:
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• PLATE, SCUFF, DOOR , REMOVAL
• KEY, TRANSPONDER , DESCRIPTION
• ANTENNA, PASSIVE ENTRY , DESCRIPTION
• MODULE, PASSIVE ENTRY , DESCRIPTION
• INSULATOR, ENGINE MOUNT, LEFT , REMOVAL
• STARTER , DIAGNOSIS AND TESTING