Question about Isuzu Rodeo

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2004 RA 4wd push button. It was selecting 4x by itself. The actuator on the transfer case has been replaced. Operated as it should for some months and fault returned. The dealer mechanic was unable to diagnose the cause of the fault and suggested the main module/transfer control unit under the seat. I replaced the main module then to have the 4x engage light flashing. I checked the front axle module and also followed the procedure of using the jumper wires across the control unit wiring harness to reset the actuator. Now all I've got is a check 4wd light on the instrument panel. Any ideas how I could get 4wd functioning correctly. Thank you

Posted by jwharriott on

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Steve Hurc

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There was a revised Transfer Case Control Module for this lock up condition that affected up to August 2003 built & VIN # MPATFS77H4H510581,possibly your vehicle, part number 8973684490 is the newer revised one. Before replacing module they should have checked the limit switches on side of transfer case, gear box and dont forget the one on the front axle, for loss of continuity. A Dealer (Tech Line) TL0950-0509 is a full updated diagnosis tip flow chart to use. If you want a copy I can E-Mail.

Posted on Feb 25, 2011

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Kane Anset

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Hi Steve, mine giving trouble as well. Can you please email the tech line to me on [email protected]
Thanks

Posted on Oct 01, 2014

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GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

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88-UP C/K ACTUATOR UPGRADE
VEHICLE SERVICED: 88-99 CHEVROLET FULL SIZE
PURPOSE: IMPROVE AXLE CONNECT ENGAGEMENT TIME AND
COMPONENT RELIABILITY.

SYMPTOMS: NO FRONT DRIVE AXLE ENGAGEMENT WHEN SHIFTED INTO 4X4.

Obtain the following GM part numbers:
(1) 26060073 Actuator
(1) 88959465 Harness/Spacer Kit
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