FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Test V: The Low Coolant Level Indicator Is Never/Always On

PINPOINT TEST V: THE LOW COOLANT LEVEL INDICATOR IS NEVER/ALWAYS ON


V1-V5:






V6-V7:






V8-V10:






Normal Operation
The low coolant level switch is hardwired to the smart junction box (SJB) through circuit 794 (LB) and grounded through circuit 1205 (BK). The SJB monitors the coolant level and sends the coolant level data to the instrument cluster over the communication network.

Possible Causes
- circuit 794 (LB) open or short to ground
- circuit 1205 (BK) open
- low coolant level switch
- SJB
- instrument cluster