Interior Lighting System: Other Ford Focus II

Illuminated Entry

The illuminated entry feature provides illumination of the front interior lamp when approaching the vehicle for entry.

The illuminated entry feature requests the front interior lamp be lit when the ignition is OFF and an UNLOCK request is received from the remote keyless entry (RKE) transmitter. The interior lights will remain illuminated for 25 seconds after the ignition transitions out of the OFF position or a LOCK request is received.

Illuminated Exit

The illuminated exit feature provides temporary illumination of the interior lights as a convenience during exit.

The illuminated exit feature requests the interior lights be turned on for 25 seconds when all doors are closed and the ignition switch is turned from RUN or ACC to OFF. The illuminated exit feature will request the lamps be turned off when any door is opened, the key is reinserted into the ignition, or 25 seconds has elapsed. Once a door is opened, the interior lighting feature assumes control of the lamps.

Theater Lighting

The theater lighting feature ramps up (turns on) the interior lights over a 0.7 second period when interior lighting activation is requested by a feature other than the panic alarm or the manual interior lighting switch. The theater lighting feature ramps down (turns off) the interior lights over a 1.7 second period when interior lighting deactivation is requested by any feature other than the panic alarm, battery saver or turning off the manual interior lighting switch.

Demand Lighting

The demand lighting feature provides illumination of a specific area of the interior when requested either directly or indirectly by the operator. The demand lamps are

1. Front dome lamp
2. Map lamps
3. Luggage compartment lamp (sedan, 3-door and 5-door)
4. Cargo lamp (wagon only)

When the operator requests a demand lamp be on, and the battery saver feature has not disabled the demand lamps, the associated light will be on. When the operator requests a demand lamp be off, or the battery saver feature has disabled the demand lamps, the associated light will be off. All other demand lamps will be unaffected by the activation or deactivation of a particular lamp.

The demand lamps feature is operated independently of the ignition state.

Battery Saver

When activated, the battery saver will interrupt power to the interior lighting and the demand lighting. The battery saver feature timing is controlled by the generic electronic module (GEM).

To activate the battery saver feature one of the following events must occur

1. The ignition is transitioned out of the OFF position.
2. Any door is opened.
3. The luggage compartment lid or tailgate is opened.
4. The hood becomes ajar (only if the vehicle is equipped with a perimeter alarm).
5. Any button on an RKE transmitter is pressed.

Refer to INTERIOR LIGHTS for schematic and connector information.

SPECIAL TOOL(S) Worldwide Diagnostic System (WDS) Vehicle Communication Module (VCM) with appropriate adapters, or equivalent diagnostic tool 73III Automotive Meter 105-R0057 or equivalent

Possible Causes

1. Fuse
2. Circuit 29-LC7 (OG/BU) open
3. Circuit 29-LC7A (OG/BU) open
4. Circuit 29-LC7B (OG/BU) open (wagon)
5. Circuit 31S-LC7 (BK/BU) open
6. Circuit 31S-LC22 (BK/OG) open
7. Battery saver relay (early build)
8. Interior lamp
9. GEM

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1. A1 VERIFY THE VEHICLE BUILD LEVEL NOTE: The vehicle build level can be identified by examining the battery saver relay in the CJB. If the battery saver relay is removable, the vehicle is an EARLY build. If the battery saver relay is integral to the CJB, the vehicle is a LATE build. Verify the vehicle build level. Is the vehicle an early build? Yes : GO to A2 . No : GO to A12 .
2. A2 CHECK THE INTERIOR LAMP OPERATION (EARLY BUILD) Check the operation of the interior lamp in both the ON and DOOR positions. Is the interior lamp inoperative in both positions? Yes : GO to A3 . No : If the lamp is inoperative in the ON position, GO to «PINPOINT TEST F»(ref-255440-S26305268652007053100000) . If the lamp is inoperative in the DOOR position, GO to A10 .
3. A3 CHECK CIRCUIT 29-LC7 (OG/BU) FOR VOLTAGE (EARLY BUILD) Key in OFF position. Disconnect: Front Interior Lamp C918a. Measure the voltage between the front interior lamp C918a-1, circuit 29-LC7 (OG/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : INSTALL a new front interior lamp assembly. CLEAR the DTCs. REPEAT the self-test. No : GO to A4 .
4. A4 CHECK THE BATTERY SAVER RELAY POWER CIRCUITS FOR VOLTAGE (EARLY BUILD) Disconnect: Battery Saver Relay C2048. Measure the voltage between the battery saver relay C2048-1, harness side and ground; and between the battery saver relay C2048-3, harness side and ground. Is the voltage greater than 10 volts? Yes : GO to A5 . No : VERIFY the CJB fuse 35 (7.5A) and fuse 36 (7.5A) is OK. If OK, GO to A21 .
5. A5 CHECK CIRCUIT 29-LC7 (OG/BU) FOR AN OPEN (EARLY BUILD) Measure the resistance between the battery saver relay C2048-5, circuit 29-LC7 (OG/BU), harness side and the front interior lamp C918a-1, circuit 29-LC7 (OG/BU), harness side. Is the resistance less than 5 ohms? Yes : GO to A6 . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
6. A6 CHECK THE BATTERY SAVER RELAY (EARLY BUILD) Carry out the battery saver relay component test. Refer to «COMPONENT TESTING»(ref-252566-S13763601082007041800000) . Did the battery saver relay pass the component test? Yes : GO to A7 . No : INSTALL a new battery saver relay. CLEAR the DTCs. REPEAT the self-test.
7. A7 CHECK CIRCUIT 31S-LC22 (BK/OG) FOR VOLTAGE (EARLY BUILD) Connect: Front Interior Lamp C918a. Connect: Battery Saver Relay C2048. Disconnect: GEM C201e. Measure the voltage between the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to A8 . No : GO to A9 .
8. A8 CHECK THE OPERATION OF THE GEM (EARLY BUILD) NOTE: The interior lamp must be connected, and the switch in the ON position. Connect a fused (7.5A) jumper wire between the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side, and ground. Does the interior lamp illuminate? Yes : GO to A20 . No : GO to A21 .
9. A9 CHECK CIRCUIT 31S-LC22 FOR AN OPEN (EARLY BUILD) Disconnect: Battery Saver Relay C2048. Measure the resistance between the battery saver relay C2048-2, circuit 31S-LC22 (BK/OG), harness side and the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side. Is the resistance less than 5 ohms? Yes : GO to A21 . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
10. A10 CHECK CIRCUIT 31S-LC7 (BK/BU) FOR VOLTAGE (EARLY BUILD) Key in OFF position. Disconnect: GEM C201a. Measure the voltage between the GEM C201a-3, circuit 31S-LC7 (BK/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to A20 . No : GO to A11 .
11. A11 CHECK CIRCUIT 31S-LC7 (BK/BU) FOR AN OPEN (EARLY BUILD) Disconnect: Front Interior Lamp C918b. Measure the resistance between the front interior lamp C918b-1, circuit 31S-LC7 (BK/BU), harness side, and the GEM C201a-3, circuit 31S-LC7 (BK/BU), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new front interior lamp assembly. CLEAR the DTCs. REPEAT the self-test. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
12. A12 CHECK THE INTERIOR LAMP OPERATION (LATE BUILD) Check the operation of the interior lamp in both the ON and DOOR positions. Is the interior lamp inoperative in both positions? Yes : GO to A13 . No : If the lamp is inoperative in the ON position, GO to «PINPOINT TEST F»(ref-255440-S26305268652007053100000) . If the lamp is inoperative in the DOOR position, GO to A17 .
13. A13 CHECK CIRCUIT 29-LC7 (OG/BU) FOR VOLTAGE (LATE BUILD) Key in OFF position. Disconnect: Front Interior Lamp C918a. Measure the voltage between the front interior lamp C918a-1, circuit 29-LC7 (OG/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : INSTALL a new front interior lamp assembly. CLEAR the DTCs. REPEAT the self-test. No : VERIFY the CJB fuse 36 (7.5A) is OK. If OK, GO to A14 .
14. A14 CHECK CIRCUIT 29-LC7 (OG/BU) FOR AN OPEN (LATE BUILD) Disconnect: CJB C270c. Measure the resistance between the CJB C270c-7, circuit 29-LC7 (OG/BU), harness side and the front interior lamp C918a-1, circuit 29-LC7 (OG/BU), harness side. Is the resistance less than 5 ohms? Yes : GO to A15 . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
15. A15 CHECK CIRCUIT 31S-LC22 (BK/OG) FOR VOLTAGE (LATE BUILD) Disconnect: GEM C201e. Measure the voltage between the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to A19 . No : VERIFY the CJB fuse 35 (7.5A) is OK. If OK, GO to A16 .
16. A16 CHECK CIRCUIT 31S-LC22 (BK/OG) FOR AN OPEN (LATE BUILD) Disconnect: CJB C270a. Measure the resistance between the CJB C270a-8, circuit 31S-LC22 (BK/OG), harness side and the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side. Is the resistance less than 5 ohms? Yes : GO to A21 . No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
17. A17 CHECK CIRCUIT 31S-LC7 (BK/BU) FOR VOLTAGE (LATE BUILD) Key in OFF position. Disconnect: GEM C201a. Measure the voltage between the GEM C201a-3, circuit 31S-LC7 (BK/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to A20 . No : GO to A18 .
18. A18 CHECK CIRCUIT 31S-LC7 (BK/BU) FOR AN OPEN (LATE BUILD) Disconnect: Front Interior Lamp C918b. Measure the resistance between the front interior lamp C918b-1, circuit 31S-LC7 (BK/BU), harness side, and the GEM C201a-3, circuit 31S-LC7 (BK/BU), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new front interior lamp assembly. CLEAR the DTCs. REPEAT the self-test. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
19. A19 CHECK THE OPERATION OF THE GEM (LATE BUILD) Connect: Front Interior Lamp C918a. NOTE: The interior lamp must be connected, and the switch in the ON position. Connect a fused (7.5A) jumper wire between the GEM C201e-20, circuit 31S-LC22 (BK/OG), harness side, and ground. Does the interior lamp illuminate? Yes : GO to A20 . No : GO to A21 .
20. A20 CHECK FOR CORRECT GEM OPERATION Disconnect all the GEM connectors. Check for: corrosion pushed-out pins Connect all the GEM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new GEM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-255417) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
21. A21 CHECK FOR CORRECT CJB OPERATION Disconnect all the CJB connectors. Check for: corrosion pushed-out pins Connect all the CJB connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new CJB. TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

1. Circuit 29-LB6 (OG/YE) open
2. Circuit 31S-LB6 (BK/YE) open
3. Circuit 31S-LB1 (BK/BU) open
4. Circuit 31-GL20 (BK) open
5. Liftgate latch
6. Cargo lamp

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1. B1 CHECK THE FRONT INTERIOR LAMP OPERATION Check the operation of the front interior lamp in both the ON and DOOR positions. Does the front interior lamp operate in both positions? Yes : GO to B2 . No : GO to «PINPOINT TEST A»(ref-255440-S17300298792007053100000) .
2. B2 CHECK THE CARGO LAMP OPERATION Check the operation of the cargo lamp in both the ON and DOOR positions. Is the cargo lamp inoperative in both positions? Yes : GO to B3 . No : If the lamp is inoperative in the ON position, GO to «PINPOINT TEST F»(ref-255440-S26305268652007053100000) . If the lamp is inoperative in the DOOR position, GO to B4 .
3. B3 CHECK CIRCUIT 29-LB6 (OG/YE) FOR AN OPEN Key in OFF position. Disconnect: Cargo Lamp C489a. Measure the voltage between the cargo lamp C489a-1, circuit 29-LB6 (OG/YE), harness side and ground. Is the voltage greater than 10 volts? Yes : INSTALL a new cargo lamp assembly. TEST the system for normal operation. No : REPAIR the circuit. TEST the system for normal operation.
4. B4 CHECK CIRCUIT 31S-LB6 (BK/YE) FOR PROPER OPERATION Key in OFF position. Disconnect: Cargo Lamp C489b. Measure the resistance between the cargo lamp C489b-1, circuit 31S-LB6 (BK/YE), harness side and ground while opening and closing the tailgate. Is the resistance less than 5 ohms with the tailgate open and greater than 10,000 ohms with the tailgate closed? Yes : INSTALL a new cargo lamp assembly. TEST the system for normal operation. No : GO to B5 .
5. B5 CHECK CIRCUIT 31S-LB6 (BK/YE) FOR AN OPEN Disconnect: Liftgate Latch C4223. Measure the resistance between the cargo lamp C489b-1, circuit 31S-LB6 (BK/YE), harness side and the liftgate switch C4223-4, circuit 31S-LB1 (BK/BU), harness side. Is the resistance less than 5 ohms? Yes : GO to B6 . No : REPAIR the circuit. TEST the system for normal operation.
6. B6 CHECK CIRCUIT 31-GL20 (BK) FOR AN OPEN Measure the resistance between the liftgate latch C4223-3, circuit 31-GL20 (BK), harness side and ground. Is the resistance less than 5 ohms? Yes : INSTALL a new liftgate latch. REFER to «HANDLES LOCKS LATCHES AND ENTRY SYSTEMS»(ref-255423) . TEST the system for normal operation. No : REPAIR the circuit. TEST the system for normal operation.

1. Circuit 31S-GL9 (BK/YE) short to ground
2. Circuit 31S-GL12 (BK/OG) short to ground
3. Circuit 31S-GL16 (BK/BU) short to ground
4. Circuit 31S-GL19 (BK/GN) short to ground
5. Front lamp
6. Door ajar switch
7. GEM

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1. C1 CHECK THE DOOR AJAR PIDs Key in ON position. Enter the following diagnostic mode on the diagnostic tool: GEM Door Ajar PIDs. Monitor the GEM door ajar PIDs while opening and closing the doors. Do the door ajar PIDs agree with the door positions? Yes : GO to C2 . No : GO to C4 .
2. C2 CHECK THE GEM Key in OFF position. Disconnect: GEM C201a. Monitor the interior lamps with the GEM disconnected. Is the interior lamp still illuminated? Yes : GO to C3 . No : GO to C6 .
3. C3 CHECK CIRCUIT 31S-LC7 (BK/BU) FOR A SHORT TO GROUND Disconnect: Front Interior Lamp C918b. Measure the resistance between the front interior lamp C918b-1, circuit 31S-LC7 (BK/BU), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : INSTALL a new front lamp assembly. CLEAR the DTCs. REPEAT the self-test. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
4. C4 CHECK THE DOOR AJAR CIRCUITS OPERATION Key in OFF position. Disconnect: GEM C201a, C201b or C201d. Measure the resistance between the GEM, harness side and ground while opening and closing the suspect door as follows: CONNECTOR-PIN REFERENCE Location Connector-Pin Circuit LH front C201d-22 31S-GL9 (BK/YE) RH front C201d-21 31S-GL16 (BK/BU) LH rear C201b-15 31S-GL12 (BK/OG) RH rear C201a-18 31S-GL19 (BK/GN) Is the resistance greater than 10,000 ohms with the suspect door closed? Yes : GO to C6 . No : GO to C5 .
5. C5 CHECK THE DOOR AJAR SIGNAL CIRCUIT FOR A SHORT TO GROUND Disconnect: Suspect Door Ajar Switch. Measure the resistance between the GEM, harness side and ground for the inoperative door ajar switch as follows: CONNECTOR-PIN REFERENCE Location Connector-Pin Circuit LH front C201d-22 31S-GL9 (BK/YE) RH front C201d-21 31S-GL16 (BK/BU) LH rear C201b-15 31S-GL12 (BK/OG) RH rear C201a-18 31S-GL19 (BK/GN) Is the resistance greater than 10,000 ohms? Yes : INSTALL a new door ajar switch. CLEAR the DTCs. REPEAT the self-test. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self test.
6. C6 CHECK FOR CORRECT GEM OPERATION Disconnect all the GEM connectors. Check for: corrosion pushed-out pins Connect all the GEM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new GEM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-255417) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.

1. Circuit 31S-GL9 (BK/YE) open
2. Circuit 31S-GL12 (BK/OG) open
3. Circuit 31S-GL16 (BK/BU) open
4. Circuit 31S-GL19 (BK/GN) open
5. Circuit 31-GL9 (BK) open
6. Circuit 31-GL12 (BK) open
7. Circuit 31-GL16 (BK) open
8. Circuit 31-GL19 (BK) open
9. Door ajar switch
10. GEM

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1. D1 CHECK THE DOOR AJAR PIDs Key in ON position. Enter the following diagnostic mode on the diagnostic tool: GEM Door Ajar PIDs. Monitor the GEM door ajar PIDs while opening and closing the suspect door. Do the door ajar PIDs agree with the door position? Yes : GO to D5 . No : GO to D2 .
2. D2 CHECK THE DOOR AJAR CIRCUITS OPERATION Key in OFF position. Disconnect: GEM C201a, C201b and C201d. Measure the resistance between the GEM, harness side and ground while opening and closing the suspect door as follows: CONNECTOR-PIN REFERENCE Location Connector-Pin Circuit LH front C201d-22 31S-GL9 (BK/YE) RH front C201d-21 31S-GL16 (BK/BU) LH rear C201b-15 31S-GL12 (BK/OG) RH rear C201a-18 31S-GL19 (BK/GN) Is the resistance less than 5 ohms with the door open and greater than 10,000 ohms with the door closed? Yes : GO to D5 . No : GO to D3 .
3. D3 CHECK THE DOOR AJAR SIGNAL CIRCUIT FOR AN OPEN Disconnect: Suspect Door Ajar Switch. Measure the resistance between the GEM, harness side and the suspect door ajar switch, harness side as follows: CONNECTOR-PIN REFERENCE Location GEM Connector-Pin Door Connector-Pin Circuit LH front C201d-22 C526-1 31S-GL9 (BK/YE) RH front C201d-21 C602-1 31S-GL16 (BK/BU) LH rear C201b-15 C715-1 31S-GL12 (BK/OG) RH rear C201a-18 C820-1 31S-GL19 (BK/GN) Is the resistance less than 5 ohms? Yes : GO to D4 . No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
4. D4 CHECK THE DOOR AJAR SWITCH GROUND CIRCUIT FOR AN OPEN Measure the resistance between the suspect door ajar switch, harness side and ground as follows: CONNECTOR-PIN REFERENCE Location Connector-Pin Circuit LH front C526-2 31-GL9 (BK) RH front C602-2 31-GL16 (BK) LH rear C715-2 31-GL12 (BK) RH rear C820-2 31-GL19 (BK) Is the resistance less than 5 ohms? Yes : INSTALL a new door ajar switch for the switch in question. CLEAR the DTCs. REPEAT the self-test. No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
5. D5 CHECK FOR CORRECT GEM OPERATION Disconnect all the GEM connectors. Check for: corrosion pushed-out pins Connect all the GEM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new GEM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-255417) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

1. RKE system

1. Circuit 31-LC7 (BK) open
2. Circuit 31-LC7A (BK) open (wagon)
3. Interior lamp

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1. F1 CHECK THE FRONT INTERIOR LAMP OPERATION Check the operation of the front interior lamp in both the ON and DOOR positions. Is the front interior lamp inoperative in both positions? Yes : GO to «PINPOINT TEST A»(ref-255440-S17300298792007053100000) . No : GO to F2 .
2. F2 CHECK THE DEMAND LAMPS GROUND CIRCUITS FOR AN OPEN Disconnect: Front Interior Lamp C918b. Disconnect: Cargo Lamp C489b (Wagon). Measure the resistance between the front interior lamp C918b-2, circuit 31-LC7 (BK), harness side and ground; and between the cargo lamp C489b-2, circuit 31-LB25 (BK), harness side and ground. Are the resistances less than 5 ohms? Yes : INSTALL a new lamp in question. TEST the system for normal operation. No : REPAIR the circuit in question. TEST the system for normal operation.

1. Circuit 29-LC7 (OG/BU) short to voltage
2. Circuit 31S-LC22 (BK/OG) short to ground
3. Battery saver relay (early build)
4. GEM
5. CJB

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1. G1 VERIFY THE VEHICLE BUILD LEVEL NOTE: The vehicle build level can be identified by examining the battery saver relay in the CJB. If the battery saver relay is removable, the vehicle is an EARLY build. If the battery saver relay is integral to the CJB, the vehicle is a LATE build. Verify the vehicle build level. Is the vehicle an early build? Yes : GO to G2 . No : GO to G5 .
2. G2 CHECK CIRCUIT 29-LC7 (OG/BU) FOR A SHORT TO VOLTAGE (EARLY BUILD) Disconnect: Battery Saver Relay C2048. Observe the demand lighting. Does the demand lighting illuminate? Yes : REPAIR the circuit. TEST the system for normal operation. No : GO to G3 .
3. G3 CHECK CIRCUIT 31S-LC22 (BK/OG) FOR A SHORT TO GROUND (EARLY BUILD) Key in OFF position. Disconnect: GEM C201e. Measure the resistance between the battery saver relay C2048-2, circuit 31S-LC22 (BK/OG), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to G4 . No : REPAIR the circuit. TEST the system for normal operation.
4. G4 CHECK THE BATTERY SAVER RELAY (EARLY BUILD) With the battery saver relay disconnected, carry out the battery saver relay component test. Refer to «COMPONENT TESTING»(ref-252566-S13763601082007041800000) . Does the battery saver relay pass the component test? Yes : GO to G7 . No : INSTALL a new battery saver relay. TEST the system for normal operation.
5. G5 CHECK CIRCUIT 29-LC7 (OG/BU) FOR A SHORT TO VOLTAGE (LATE BUILD) Disconnect: CJB C270c. Observe the demand lighting. Does the demand lighting illuminate? Yes : REPAIR the circuit. TEST the system for normal operation. No : GO to G6 .
6. G6 CHECK THE GEM MODULE (LATE BUILD) Key in OFF position. Connect: CJB C270c. Disconnect: GEM C201e. Observe the demand lighting. Does the demand lighting illuminate? Yes : GO to G7 . No : GO to G8 .
7. G7 CHECK CIRCUIT 31S-LC22 (BK/OG) FOR A SHORT TO GROUND (LATE BUILD) Disconnect: CJB C270a. Measure the resistance between the CJB C270c-8, circuit 31S-LC22 (BK/OG), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : GO to G9 . No : REPAIR the circuit. TEST the system for normal operation.
8. G8 CHECK FOR CORRECT GEM OPERATION Disconnect all the GEM connectors. Check for: corrosion pushed-out pins Connect all the GEM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new GEM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-255417) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
9. G9 CHECK FOR CORRECT CJB OPERATION Disconnect all the CJB connectors. Check for: corrosion pushed-out pins Connect all the CJB connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new CJB. TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

1. Circuit 29-LB25 (OG/BU) open
2. Circuit 31S-LB25 (BK/BU) open
3. Circuit 31S-LB1 (BK/BU) open
4. Circuit 31S-GL20 (BK/RD) short to ground
5. Circuit 31-GL20 (BK) open
6. Circuit 31-AA27 (BK) open
7. Luggage compartment lid/liftgate latch
8. Luggage compartment lamp
9. GEM

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1. H1 CHECK THE FRONT INTERIOR LAMP OPERATION Check the operation of the front interior lamp in both the ON and DOOR positions. Does the front interior lamp operate in both positions? Yes : GO to H2 . No : GO to «PINPOINT TEST A»(ref-255440-S17300298792007053100000) .
2. H2 CHECK THE LUGGAGE COMPARTMENT LID/LIFTGATE LATCH OPERATION Check the operation of the luggage compartment lid/liftgate latch. Does the luggage compartment lid/liftgate latch operate properly? Yes : GO to H3 . No : GO to «HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS»(ref-255423) .
3. H3 CHECK THE DECKLID/HATCH AJAR PID Key in ON position Enter the following diagnostic mode on the diagnostic tool: GEM Door Ajar PIDs. Monitor the GEM decklid/hatch ajar PID while opening and closing the decklid/hatch. Does the decklid/hatch ajar PID agree with the decklid/hatch positions? Yes : GO to H4 . No : GO to H7 .
4. H4 CHECK CIRCUIT 29-LB25 (OG/BU) FOR AN OPEN Key in OFF position. Disconnect: Luggage Compartment Lamp C428. Measure the voltage between the luggage compartment lamp C428-2, circuit 29-LB25 (OG/BU), harness side and ground. Is the voltage greater than 10 volts? Yes : GO to H5 . No : REPAIR the circuit. TEST the system for normal operation.
5. H5 CHECK CIRCUIT 31S-LB25 (BK/BU) FOR CORRECT OPERATION Measure the resistance between the luggage compartment lamp C428-H, circuit 31S-LB25 (BK/BU), harness side and ground with the luggage compartment lid/liftgate open. Is the resistance less than 5 ohms with the luggage compartment lid/liftgate open? Yes : INSTALL a new luggage compartment lamp assembly. TEST the system for normal operation. No : GO to H6 .
6. H6 CHECK CIRCUIT 31S-LB25 (BK/BU) FOR AN OPEN Disconnect: Luggage Compartment Lid/Liftgate Latch C430 (Sedan) or C4223 (3-Door and 5-Door). Measure the resistance between the luggage compartment lamp C428-1, circuit 31S-LB25 (BK/BU), harness side and the luggage compartment lid latch C430-2 (sedan), circuit 31S-LB25 (BK/BU), harness side, or the liftgate latch C4223-4, circuit 31S-LB1 (BK/BU) (3-door and 5-door), harness side. Is the resistance less than 5 ohms? Yes : INSTALL a new luggage compartment lid latch. REFER to «HANDLES LOCKS LATCHES AND ENTRY SYSTEMS»(ref-255423) . TEST the system for normal operation. No : REPAIR the circuit. TEST the system for normal operation.
7. H7 CHECK THE LUGGAGE COMPARTMENT LID/LIFTGATE AJAR CIRCUIT OPERATION Key in OFF position. Disconnect: GEM C201a. Measure the resistance between the GEM C201a-22, circuit 31S-GL20 (BK/RD), harness side and ground with the luggage compartment lid/liftgate open. Is the resistance greater than 10,000 ohms with the luggage compartment lid/liftgate open? Yes : GO to H9 . No : GO to H8 .
8. H8 CHECK CIRCUIT 31S-GL20 (BK/RD) FOR A SHORT TO GROUND Disconnect: Luggage Compartment Lid/Liftgate Latch C430 (Sedan) or C4223 (3-Door and 5-Door). Measure the resistance between the GEM C201a-22, circuit 31S-GL20 (BK/RD), harness side and ground. Is the resistance greater than 10,000 ohms? Yes : INSTALL a new latch. REFER to «HANDLES LOCKS LATCHES AND ENTRY SYSTEMS»(ref-255423) . TEST the system for normal operation. No : REPAIR the circuit. TEST the system for normal operation.
9. H9 CHECK FOR CORRECT GEM OPERATION Disconnect all the GEM connectors. Check for: corrosion pushed-out pins Connect all the GEM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : INSTALL a new GEM. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-255417) . TEST the system for normal operation. No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.