Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1992G 10 VAN V6-262 4.3L VIN ZREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSDIAGRAMS
1992 Chevrolet G 10 Van V6-262 4.3L VIN Z
Transmission Control Systems: Diagrams
1992 Chevrolet G 10 Van V6-262 4.3L VIN ZSECTION Diagrams
Note: For information regarding your specific 4L60 model, see Transmission System Identification. Application and ID
Type 4 Model Designation:
"LHM"
Type 6 Model Designation:
"SAM"
Type 9 Model Designation:
"FUM"
Type 18 Model Designations:
"AAM, ACM, ADM, AKM, ALM, ARM,
BAM, BBM, BCM, BFM, BHM, BJM,
BWM, CAM, CBM, CCM, CFM, CHM,
CJM, CNM, CPM, CXM, CYM, DDM,
FBM, FTM, FZM, KAM, KHM, KJM,
KMM, KTM, MJM, MMM, MNM, MSM,
RDM, SFM, SHM, TAM, TBM, TLM,
TWM, WAM, WBM, WCM, YCM, YDM,
YHM, YLM"
Type 19 Model Designations:
"LBM, LCM, LDM, LFM"
Type 21 Model Designations:
"HBM, HDM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 4):
Type 4 Model Designation:
"LHM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 6):
Type 6 Model Designation:
"SAM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 9):
Type 9 Model Designation:
"FUM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 18):
Type 18 Model Designations:
"AAM, ACM, ADM, AKM, ALM, ARM,
BAM, BBM, BCM, BFM, BHM, BJM,
BWM, CAM, CBM, CCM, CFM, CHM,
CJM, CNM, CPM, CXM, CYM, DDM,
FBM, FTM, FZM, KAM, KHM, KJM,
KMM, KTM, MJM, MMM, MNM, MSM,
RDM, SFM, SHM, TAM, TBM, TLM,
TWM, WAM, WBM, WCM, YCM, YDM,
YHM, YLM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 19):
Type 19 Model Designations:
"LBM, LCM, LDM, LFM"
4L60 Trans Electrical Components Locations/Schematic Diagram (Type 21):
Type 21 Model Designations:
"HBM, HDM"
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.