Component Resistances:

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EGR Solenoid; 20-50 ohms.
Canister Purge Solenoid; 20-50 ohms.
Coolant Fan Relay; 72-88 ohms.
A/C Relay; 72-88 ohms.

Fig 1: Code 26, Schematic, Quad-Driver Error

G92H04638

Fig 2: Code 26, Flow Chart, Quad-Driver Error

G92J04644

Fig 3: Code 26

GB0011457