Test Procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
Make sure the engine is at room temperature or Colder.
-- Disconnect the Automatic Glow Time Control Module -J179- connector. Refer to applicable wiring diagram for relay location and number.
Checking voltage
-- Switch the ignition On.
-- Using a Multimeter measure the voltages of the Automatic Glow Time Control Module -J179- connector.
| Automatic Glow Time Control Module -J179- electrical harness connector terminal | Measure to: |
|---|---|
| 6 | Engine Ground |
| 7 | Battery Voltage |
| 11 | Engine Ground |
Specified value: Battery Voltage
-- Switch the ignition Off.
Continue test according to the following table:
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking Wiring |
| If the specified value was obtained: | Check reference signal circuit | Checking Activation |