*For reference only.
Pin voltage charts are supplied to reduce diagnostic time. Checking pin
voltages at ECU determines whether ECU is receiving and transmitting proper
voltage signals. Charts may also help determine if ECU harness has an
electrical short or open.
NOTE: Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.
|
Terminals
|
Component To Be Tested & Condition (1) | Specified Value or Result |
|
13 & 14
|
Voltage Supply (Control Unit), Ignition ON | Battery Voltage |
|
14 & 19
|
Voltage Supply (Control Unit), Ignition ON | Battery Voltage |
|
3 & 13
|
Wires To Fuel Pump Relay, Ignition ON | Pumps Must Run Audibly |
|
13 & 25
|
Wire From Coil Term. 1, Ignition ON | Battery Voltage |
|
1 & 7
|
AEG Hall Control Unit, Ignition ON | Battery Voltage or Less |
|
1 & Ign. Coil 15
|
Hall Control Unit, Ground Center Distributor Connector Wire | 1.5 Volts or Less |
|
1 & 13
|
From Starter Term. 50 & From Adapter For Idle Stabilizer Control Unit Terminal 50, Disconnect Connector From Injectors. Operate Starter, Select "P" Then "N" | 8 Volts Minimum |
