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Do not connect battery trickle charger. Risk of Injurywhen performing diagnostic tests and repairs on components of the SRS system. Store both airbags and side airbags with opening surface pointing upward. Do not expose to temperatures above 100°C . Preliminary work: Diagnosis – Function Test. See: FT – Function Test Preparation for DTC Readout : 1. 2. 3. 4. 5. Review DTC Memory and Actual Values. Fuses OK. Battery voltage 11 – 14 V SRS MIL (A1e15) illuminates. Connect Hand-Held Tester (HHT) as per connection diagram and readout DTC memory. WARNING: Interrupt any electrical current from reaching the airbag unit. NOTE: As of 07/93, diagnostic trouble codes (DTC’s) can only be read out and erased using the Hand-Held Tester (HHT). Determine MB number of the SRS control module via HHT (See DTC Chart). The SRS control modules beginning with the number 000, the fault code 1 is valid. Those beginning with 001, the fault code 2 is valid. NOTE : When installing additional accessories, observe harness clearances near SRS sensor lines. Test equipment : Hand-Held Tester (HHT) (Available through the MBNA Standard Equipment Program.)

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1. On vehicles equipped with a manual transmission, remove the shift lever. 2. On vehicles equipped with an automatic transmission, perform the following steps: 2.1. Apply the park brake. 2.2. Insert the ignition key and turn the ignition switch to the RUN position. 2.3. Depress the brake pedal and shift the transmission to the 1 position. 2.4. Turn the ignition switch to the OFF position. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices. 3. 4. 5. 6. 7. 8. 9. 10. Disconnect the battery negative cable. Remove the left sound insulator. Remove the right instrument panel sound insulator. If the vehicle is equipped with a multiple CD changer located in the center console, remove the center console. Remove the center sound insulator. Remove the lower left instrument panel mounting bolt. Remove and retain the instrument panel storage compartment. Remove the lower right instrument panel mounting bolt. 11. Remove and retain the left and right speakers and the speaker grilles. 12. Use a flat-bladed tool in order to remove the windshield defroster grille. Retain the grille and sunload sensor for use on the next IP carrier. 13. 14. 15. 16. If equipped with a sun load temperature sensor twist the sensor 1/4 turn counterclockwise in order to disengage. Disconnect the brown electrical connection from the body control module (BCM). Disconnect the purple electrical connection from the body control module (BCM). Remove the knee bolster. 1998 Chevy Truck S10/T10 Blazer 2WD V6-4.3L VIN W 17. Remove and retain the instrument cluster. 18. Remove and retain the radio. 19. Remove the HVAC control assembly. CAUTION: Refer to SIR Handling Caution in Cautions

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Manufacturer supplied 2 different possible locations. Look for 5 wire connector with wire colors: gray, white, orange, pink & black. #PIT3819: Location of Interior Lamp Control Module – keywords control dim dome electrical entry ground illumination inoperative keyless lens light remort resistor RKE short – (Dec 23, 2005) Subject: Location of Interior Lamp Control Module. Models: 1995-2000 Chevrolet C/K Trucks, Suburban and Tahoe 1995-2000 GMC Yukon and C/K Trucks Classic Body Style Only The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this P1. Condition/Concern When diagnosing a dome lamp concern on one of the vehicles listed above, you may be unable to locate the Interior Lamp Control Module that is called out in the Service Manual. Recommendation/lnstructions :

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REMOVAL PROCEDURE
IMPORTANT: This vehicle uses the PG260 F1 starter motor. The starter motor is serviced only as a complete unit. Zoom Sized for Print
1. Disconnect the battery ground (negative) cable from the battery. 2. Raise the vehicle and suitably support. Refer to Lifting and Jacking the Vehicle in General Information. 3. Remove the electrical connections at the starter motor. 4. Remove the torque converter cover. 5. Remove the starter motor bolts. 6. Remove the starter motor from the engine.
INSTALLATION PROCEDURE

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Subject: Information on Gradual Coolant Loss Over Time With No Evidence of Leak Found Models: 2004-2006 Buick Rainier 2001-2006 Cadillac Escalade Models 2001-2006 Chevrolet Avalanche, Blazer, Silverado, Suburban, Tahoe, TrailBlazer Models 2001-2006 GMC Envoy, Jimmy, Sierra, Yukon Models 2001-2004 Oldsmobile Bravada 2005-2006 Saab 9-7X with 4.8L or 5.3L VORTEC(R) GEN III, GEN IV V8 Engine (VINs V, T, M, B, Z – RPOs LR4, LM7, LH6, L33, L59) Supercede: This bulletin is being revised to include engine RPO L59. Please discard Corporate Bulletin Number 06-06-01-019A (Section 06 – Engine/Propulsion System). Some vehicles may experience a gradual coolant loss over time. A very low percentage of cylinder head(s) manufactured with an embossed Castech logo may develop a porosity crack in a very specific area. Inspect the cylinder head assembly to determine if the casting was manufactured by Castech. This can be accomplished by inspecting for their casting logo located on top of the intake port, under the rocker arm support rail and in the spring deck cavity portion of the cylinder head. If the cylinder head(s) are Not a Castech casting, follow normal diagnostic procedures in SI to determine the cause of the coolant loss.