KC-615
Service Bulletin Details
Public Details for: KC-615
Vehicles with an automated manual transmission model f (amt-f) with crawler gearbox - diagnostic trouble code (dtc) P10C7-97 crawler gear engagement system blocked shift to neutral position; vehicle stuck in limp mode or will not shift into
- 9999 -
Models from 9999
9999 VOLVO VN |
9999 VOLVO VNL |
9999 VOLVO VOLVO TRUCK |
4/29/22, 11:03 AM Article Vehicles With An Automated Manual Transmission Model F (AMT-F) With Crawler Gearbox - Diagnostic Trouble Code (DTC) P10C797 Crawler Gear Engagement System Blocked Shift To Neutral Position; Vehicle Stuck In Limp Mode Or Will Not Shift Into Gear Internal Content Guided Diagnostics are under review for this fault. Until improvements are made to GD, please use this CBR to diagnose this fault. Crawler function: The crawler shifter cannot be engaged if the splitter shifter is in a gear. The splitter shifter MUST be in neutral for the crawler shifter to move. Likewise, the splitter cannot move from the neutral position if the crawler is in gear. The lockout function is mechanical and internal to the gearbox. • Before claiming a stuck crawler shift assembly ensure the splitter is in Neutral. If the fault is inactive with high counts. 1. In Premium Tech Tool (PTT), run Test 4320-08-03-40 Gears or 432008-03-49 Ultra-low Crawler Cylinder several times, or shift the transmission into and out of crawler gear with the shift lever several times. - See if the unit will log P10C7 and stop shifting. - Listen for air leaks during the tests/shifting. 1.1 If the unit stops shifting and logs a fault: Go to the Active Fault section below. 1.2 If the vehicle will not log the fault: 1.2.1. Remove the EVU from the upper right side of the extension section. 1.2.2. Manually manipulate the plunger. ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD14?pyActivity=%40base… 1/5 4/29/22, 11:03 AM Article ○ The return spring is very stiff but the plunger should feel smooth and not hang up in its travel or feel like it is dragging in the bore. 1.2.3. If the plunger feels like it is dragging, replace the EVU If the fault is Active or becomes active during the above listed steps: 1. Carefully remove the EVU from the upper right side of the extension section. 2. Check that the position sensor plunger is not stuck. 2.1. If the plunger is found to be sticking: Replace the EVU. 2.2. If the plunger is not stuck and moves smoothly: Check the crawler shifter for freedom of movement. 2.2.1. If the crawler is engaged, the shifter will be in the forward position (closer to the engine). 2.2.1.1. Insert a pry bar in front of the shifter and pry the shifter rearward. It should move freely except for the detent plunger pressure that is internal to the gearbox. 2.2.1.2. If the crawler shifter moves easily manually: Use a rubber tipped air blower to put air to the two ports inside the gearbox to shift the unit with air pressure. ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD14?pyActivity=%40base… 2/5 4/29/22, 11:03 AM Article ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD14?pyActivity=%40base… 3/5 4/29/22, 11:03 AM Article Tags k03785558 p10c7-97 p10c797 volvo mack ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD14?pyActivity=%40base… 4/5 4/29/22, 11:03 AM Related links and attachments No content available Article Feedback Give feedback to help improve the content of this article ; Live UI https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD14?pyActivity=%40base… 5/5