TM 5-3805-293-23-2
0022
Table 1. Cab Heating, Air Conditioning, and 12 Volt Power Inverter Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Refrigerant Compressor
7. Using digital multimeter, test for
Resistance 5.0 Ohms or Less - Pro-
Will Not Engage - Con-
continuity between harness con-
ceed to step 8.
tinued
nector R-C48 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
384) terminal 3 and harness con-
Replace cab upper wiring harness
nector P-C3 (WP 0009, Figure 34)
(WP 0265).
terminal 27.
Connect harness connector AW-C9
Resistance should be less than 5.0
(WP 0009, Figure 267) from refriger-
ohms.
ant low pressure switch (WP 0009,
Figure 266) (WP 0097).
Connect harness connector FA-C8
(WP 0009, Figure 388) to A/C clutch
relay (WP 0009, Figure 395) (WP
0189).
Connect rear chassis wiring harness
connector FA-C20 (WP 0009, Figure
113) to transmission ECM J1 (WP
0009, Figure 112) (WP 0137).
Proceed to step 10.
8. Disconnect rear chassis wiring
harness connector FA-C35 (WP
0009, Figure 17) from cab lower
wiring harness connector P-C70
(WP 0009, Figure 16).
0022-43