Malfunction Test 5

Fig. 10 Checking for voltage at relay terminals 87 & 87b:

Fig. 11 Checking for voltage at terminal 30:

Fig. 12 Checking for voltage across terminals 86 & ground:

1. Use voltmeter to check for voltage at terminals 87 and 87b on sensor relay system, Fig. 10.
2. If there is voltage at both terminals, repair wire from sensor system relay to frequency valve.
3. If there is voltage at only one terminal, replace sensor system relay.
4. If there is no voltage at either terminal, check for voltage at terminal 30, Fig. 11.
5. If there is no voltage at terminal 30, repair wiring to relay.
6. If there is voltage at terminal 30, check for voltage across terminal 86 and ground, Fig. 12.
7. If there is voltage across terminal 86 and ground, proceed as follows:
a. Check for voltage across terminals 85 and 86.
b. If there is voltage, replace relay.
c. If there is no voltage, repair ground wire.
8. If there is no voltage across terminal 86 and ground, proceed as follows:
a. Check for voltage at one terminal of auxiliary air valve electrical connector.
b. If there is voltage, repair wire from continuous injection system pump relay to sensor system relay terminal 86.
c. If there is no voltage, perform test as described under ``Continuous Fuel Injection System'' in the ``Fuel Injection'' section.
9. Perform ``System Test.''