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Section 07 CHASSIS
Subsection 03 (DYNAMIC POWER STEERING (DPS))
MULTIMETER PROBE
POSITIONS
DPS GDN
connector pin A
Battery ground
DPS GDN
connector pin B
If there is NO continuity or a high resistance is
measured, check wires and connector pins from
DPS unit to chassis ground post. Replace or re-
pair defective parts and reset fault codes.
If there is good continuity, carry out the following
DPS UNIT COMMUNICATION LINK (CAN) CON-
TINUITY TEST
.
NOTE: This test may also be carried out by con-
necting a 12 Vdc test light between each GDN
connector pin and the battery (+) positive termi-
nal. The test light must come on bright.
DPS Unit Communication Link (CAN)
Continuity Test
NOTE: DPS unit must receive an RPM signal to
provide power steering assist.
1. Disconnect the DPS control connector and the
diagnostic connector.
2. Test continuity of CAN Bus Wires at DPS1-C
and DPS1-D.
MULTIMETER PROBE
POSITIONS
DPS control connector (pin C)
and diagnostic connector (pin 1)
rmr2008-028-094_a
DPS control connector (pin D)
and diagnostic connector (pin 2)
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522
If resistance measured is out of specification,
READING
check wires and connector pins. Carry out re-
pairs as required and reset fault codes using
B.U.D.S software.
Continuity
If resistance measured is good, replace the DPS
(close to 0
)
unit and reset fault codes using B.U.D.S software.
DPS System Load Test
If the charging system cannot sustain normal volt-
age when the DPS is operating, DPS ASSIST may
be greatly reduced or nonexistent. Carry out the
following steps.
1. Measure the battery voltage.
NOTE: If battery voltage is low, recharge battery.
2. Ensure the vehicle transmission is set to PARK.
3. Start the engine.
4. Note the voltage on the multimeter with the en-
5. Press the RANGE button repeatedly to select
RESISTANCE @
20°C (68°F)
mmr2009-023-027_a
Below 1
VDC SELECTED TO MANUAL RANGE 6 0
6. Press the MIN MAX button on the multimeter
gine running (charging system voltage).
Manual Range 6 0.
to engage the MIN function.
vmr2015-142
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Table of Contents
Troubleshooting
