TEST
ACTION
APPLICABILITY
4
Turn the ignition on.
With the DRB, actuate the Wait To Start Lamp.
Does the Wait To Start Lamp cycle on and off?
All
Yes
→
The Wait To Start Lamp System is operating properly. Test
complete.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Go To
5
5
Turn the ignition off.
Disconnect the ECM harness connectors.
Turn the ignition on.
Connect a jumper wire between ground and the Wait To Start Lamp Control circuit
in the ECM C1 harness connector.
Is the Wait To Start Lamp on?
All
Yes
→
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Go To
6
6
Turn the ignition off.
Disconnect the ECM harness connectors.
Remove the ASD/Diesel Power Relay from the PDC.
Connect a jumper wire between ASD/Diesel Power Relay connector cavities 30 and 87
(in PDC).
Turn the ignition on.
Measure the voltage of the Wait To Start Lamp Control circuit.
Is the voltage below 0.5 volt?
All
Yes
→
Go To
7
No
→
Repair the Wait To Start Lamp Control circuit for a short to
voltage.
Perform ROAD TEST VERIFICATION - VER-2.
7
Turn the ignition off.
Disconnect the ECM harness connectors.
Measure the resistance of the Wait To Start Lamp Control circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
Go To
8
No
→
Repair the Wait To Start Lamp Control circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
8
Turn the ignition off.
Remove and inspect the Wait To Start Lamp bulb from the Instrument Cluster.
Is the bulb OK?
All
Yes
→
Replace the Instrument Cluster in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Replace the Wait To Start Lamp bulb.
Perform ROAD TEST VERIFICATION - VER-2.
199
DRIVEABILITY - DIESEL
*CHECKING THE WAIT TO START LAMP OPERATION —
Continued