TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the TCM harness connector.
Remove the starter relay from the PDC.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output (Start) circuit.
Note: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery positive post.
Observe the test light while momentarily turning the ignition switch to the Start
position.
Is the test light illuminated?
All
Yes
→
Go To
4
No
→
Repair the Fused Ignition Switch Output (Start) circuit for an
open. Refer to the wiring diagrams located in the Service Infor-
mation.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
Note: Reinstall the original Starter Relay.
4
Turn the ignition off.
Disconnect the TCM harness connector.
Using a 12-volt test light connected to ground, probe the Fused B(+) circuit.
Note: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery positive post.
Is the test light illuminated?
All
Yes
→
Go To
5
No
→
Repair the Fused B(+) circuit for an open. Refer to the wiring
diagrams located in the Service Information.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
5
Turn the ignition off.
Disconnect the TCM harness connector.
Using a 12-volt test light connected to 12-volts, probe each ground circuit in the TCM
connector.
NOTE: The light must illuminate brightly, if it does not light, or lights dimly,
the circuit must be repaired. If there is any doubt, compare the brightness
when testing the circuit, to the brightness when connected directly to the
battery negative post.
Is the light illuminated at all ground circuits?
All
Yes
→
Go To
6
No
→
Repair the Ground circuit(s) for an open. Check the main ground
connection to engine block and/or chassis. Refer to the wiring
diagrams located in the Service Information.
Perform 45RFE TRANSMISSION VERIFICATION TEST - VER
1.
175
COMMUNICATION
*NO RESPONSE FROM TRANSMISSION CONTROL MODULE —
Continued