1. Review 11 , 12 , 13 , 14 , 15 , 20 , 21 , 22 , 31 , 32 , 41 , 42 2. Upon completion of test, erase DTC memory from A/C pushbutton control module (see 15 ). 3. Remove A/C pushbutton control module (N22), see AR83.40-P-6350C The second column of the TEST section will show both the DTC for the HHT and the display window of the A/C pushbutton control module for each test step. Electrical wiring diagrams: Electrical Troubleshooting Manual, Model 210

Test equipment; See MBUSA Standard Service Equipment Program

Description	Brand, model, etc.
Digital multimeter	Fluke models 23, 77 III, 83, 85, 87

Connection Diagram - Socket Box Figure 1 001 Right connector, A/C pushbutton control module 002 Test cable 003 Multimeter 004 Socket box N22 AAC pushbutton control module
		P83.40-0278-06