INSPECTION PROCEDURE 1 Check voltage between terminal EGR of engine control module connector and body ground. SST ECM (B) 75 EGR FI6620 P (1) Connect SST (check harness "A"). (See page EG-404) SST 09990-0100 (2) Warm up engine to normal operating temperature. C Measure voltage between terminal EGR of engine control module connector and body ground. OK Voltage: 9 — 14 V NG OK Go to step 4 . 2 Check resistance between terminals of VSV for EGR. FI95632 P Remove VSV for EGR. (See page EG-240) C Measure resistance between terminals of VSV for EGR. OK Resistance: 38.5 — 44.5 Ω at 20°C (68°F) OK NG Replace VSV for EGR. 3 Check for open and short in harness and connector between EFI main relay and VSV for EGR, VSV for EGR and engine control module. (See page IN-30) OK NG Repair or replace harness of connector. Check and replace engine control module.