8206code.fm Page 131 Tuesday, July 7, 1998 11:57 AM
DIAGNOSTIC CODE 5-5 Test 1
Test 2
Checking for a short in the actuator circuit
Checking for a short to ground in the pump
Figure 214 — Resistance between Deutsch Pins B and G
1. Turn the ignition key to the OFF position. 2. Disconnect the engine harness from the injection pump connector on the pump end of the harness. 3. Measure the resistance between Deutsch pins B and G, on the injection pump connector.
Figure 215 — Continuity from Deutsch Pin B to Ground
1. Check for continuity from Deutsch pin B to a good ground.
If there is continuity, there is a short to ground inside the pump cover. Send the pump to a certified pump shop for repair of the pump actuator assembly. Retest to be sure the problem has been corrected. If there is no continuity, proceed to Test 4.
If the resistance is between 0.5 and 1.5 ohms, proceed to Test 2. If the resistance is not between 0.5 and 1.5 ohms, continue with the next step. 4. Visually inspect the pins and crimps in the injection pump connector, at the pump end of the harness, for the cause of the open.
If there is a repairable condition, repair. Retest to be sure the problem has been corrected. If there is not a repairable condition, send the pump to a certified pump shop for repair of the pump or integral jumper harness. Then retest to be sure the problem has been corrected.
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