Tech Tips

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The following technical tips provide repair information about specific conditions on a variety of vehicles. If you have a tough or unusual service repair, the TSS Technical Assistance Hot Line can help. Call 1-800-825-5886, prompt #2, to speak with a technical expert with the latest OEM information.

 

Remote Keyless Entry Inoperative

1995-1998 Saab 900, 1999-2002 Saab 9-3 Sedan, 2003 Saab 9-3 Convertible, and 1999-2008 Saab 9-5

The Remote Keyless Entry (RKE)/ central locking may be intermittently inoperative or the radio may not turn off when removing the key. This concern may be difficult to duplicate and no DTCs are set.

If the B+ (plunger) switch in the ignition switch sticks in/on when removing the ignition key, these conditions will be present. When B+ voltage is present, it supplies fuse 5 in panel 22a. This fuse supplies DICE and TWICE a key-in ignition signal, disabling RKE.

This condition is often caused by liquids or debris entering into the lock cylinder, causing the cylinder not to fully release upon key removal. The center portion of the cylinder should pop up when the key is removed.

To repair this condition, carefully remove the immobilizer antenna (if equipped) from around the ignition switch to check for evidence of spilled liquids. If residue is found, remove the ignition lock cylinder and inspect the cylinder and switch for binding. It may be possible to clean the key cylinder by soaking it in warm, soapy water; then blow it out with compressed air. Lube the lock cylinder with light machine oil before re-installing. If the cylinder still binds, it should be replaced. If residue is found in the switch, it must be replaced. The key cylinders can be ordered keyed to the vehicle.

The antenna for the RKE is mounted in the center console by the rear ashtray.

 

A/C, Cruise Control, A/T Shift Position Indicator Inoperative

2003 Honda Accord V6

At least one of these intermittent symptoms may occur: A/C does not work, cruise control does not work, the automatic transmission shift position indicator in the instrument cluster does not work.

When this problem occurs, all of these symptoms are present, but the customer may not notice all of them.

The probable cause is a communication problem between the F-CAN (Controller Area Network) and the PCM. An update of the PCM is required.

 

Blower Motor Slows When Using Navigation Voice Control

2004 Acura TSX with the navigation system

In models with the navigation system, owners may comment that the fan speed drops when the navigation voice control switch is pressed. This is a normal operation that was added to the system during the 2004 model year.

The blower motor fan speed drops to its lowest setting (1) as soon as the steering wheel-mounted voice control switch is pressed and released. This feature keeps air from the center vent from blowing onto the microphone in the ceiling and reducing the voice recognition capability.

Owners of TSX models built before the VIN cutoff will receive this feature if the updated disc is purchased from the Acura website.

 

Air Cleaner Cover Installation

2004-09 Cadillac SRX, 2005-09 Cadillac STS (except V Series), and 2004-07 Cadillac CTS (except V Series)

If replacing only the air filter element, the air cleaner (outlet side) cover does NOT need to be completely removed from the housing. The cover will pivot to allow for removal and installation of the filter element.

The air cleaner (outlet side) cover can be difficult to reinstall in the proper position if it has been fully removed from the housing. The tabs (Fig. 14, A) must be correctly aligned with the hinge slots (Fig. 14, B) in the (inlet side) housing. It is possible to incorrectly reassemble the cover to the housing without the cover seated properly at the hinge.

 j09fig14.jpg

Fig. 14, A, B

When viewed from the top, there may not be a visual indication that the box is not properly sealed.

To reduce the risk of an improperly sealed air cleaner assembly and dirty air entering the engine, verify that the cover is seated correctly in the housing before reinstalling the cover bolts.

To check that the cover is properly seated once the cover bolts have been torqued down, gently pull up on the cover/MAF Sensor adapter. This gives a positive indication that the tabs of the cover are seated in the hinge slots.

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This page contains a single entry by Blog Admin published on January 27, 2009 7:00 PM.

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