Hill Descent Control System
WARNING
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The hill descent control system can only be activated when the AWD LOCK switch is engaged.
The hill descent control system helps maintain vehicle speed when driving under 15 MPH (25 km/h) on steeper downhill grades. Hill descent control is useful when engine braking alone cannot control vehicle speed. Hill descent control applies the vehicle brakes to control vehicle speed allowing the driver to concentrate on steering while reducing the burden of brake and accelerator operation.
If the hill descent control light is blinking, the hill descent control is engaged; however, the hill descent control will not control the vehicle speed.
For additional information, refer to “Hill descent control system on indicator light” in the “Instruments and controls” section of this manual.
If the accelerator or brake pedal is depressed while the hill descent control system is on, the system will stop operating temporarily. As soon as the accelerator or brake pedal is released, the hill descent control system begins to function again if the hill descent control operating conditions are fulfilled.
For the best results, when descending steep downhill grades, the hill descent control switch should be ON and the shift lever in L (Low gear) for engine braking.
P0604 ECM
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0604
ECM
[Internal control module random access
memory (RAM) error]
Malfunction in the internal RAM of ECM.
POSSIBLE CAUSE
ECM
FAIL-SAF ...
Basic inspection
DIAGNOSIS AND REPAIR WORK FLO
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurs).
Check operation condition of the ...
U1050, U1051 LIN communication
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
U1050
LIN COMMUNICATION
[LIN (Local Interconnect Network) communication)]
ECM detects LIN communication error.
U1051
POSSIBLE CAUSE
...