Chrysler Concorde 2004 Service Manual page 941

Symptom:
P1698-NO TRANSMISSION BUS MESSAGE
When Monitored and Set Condition:
P1698-NO TRANSMISSION BUS MESSAGE
When Monitored: Equipped with automatic transmission. Engine Running Battery
voltage greater than 10 volts.
Set Condition: No bus messages received from the TCM for 20 seconds, two trips
required.
PCI BUS UNABLE TO COMMUNICATE WITH DRBIII
(F12) FUSED IGNITION SWITCH OUTPUT (OFF-RUN-START)
INTERMITTENT CONDITION
PCM
TEST
1 NOTE: If P1603 or P1604 are set along with this DTC, diagnose them first
before continuing with P1698.
NOTE: Before continuing, inspect all fuses and ensure that all power and
ground circuits are operating properly.
NOTE: Check all powers and grounds to the PCM before continuing.
Turn the ignition on.
With the DRBIII , erase DTCs.
Start the engine, allow the engine to run for at least 20 seconds with the gear selector
in Drive. Repeat at least 2 times.
With the DRBIII , read DTC's.
Does the DTC reset?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION symptom in the
No
POSSIBLE CAUSES
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
DRIVEABILITY - NGC
283
APPLICABILITY
All