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TRANSMISSION - NGC
Symptom:
P1652-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored and Set Condition:
P1652-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored: Continuously with engine running.
Set Condition: The DTC sets in approximately 20 seconds if no BUS messages are
received by the TCM. Note: Due to the integration of the Powertrain and Transmission
Control Modules, bus communication between the modules is internal.
ENGINE COMMUNICATION DTCS PRESENT
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS
TEST
1
Ignition on, engine not running.
With the DRBIII , read Engine DTC's.
Are there any Engine Communication DTC's present?
Yes → Refer to the Powertrain category and perform the appropriate
→ Go To 2
No
2
With the DRBIII , erase Transmission DTC's.
Start the Engine in Park.
With the DRBIII , read Transmission DTCs.
NOTE: The Engine must run for at least 20 seconds to reset this DTC.
Did the DTC reset after the engine was started?
Yes → Go To 3
→ Go To 4
No
3
Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
Repair
POSSIBLE CAUSES
ACTION
symptom.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
Replace the Powertrain Control Module. WITH THE DRBIII
PERFORM QUICK LEARN AND REPROGRAM PINION FAC-
TOR.
Perform 41TE (NGC) TRANSMISSION VERIFICATION TEST -
VER 1.
132
APPLICABILITY
All
All
All
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