VDC(diag)-113
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
Check
Yes
No
1
CHECK POWER SUPPLY FOR YAW RATE &
LATERAL G SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from yaw rate &
lateral G sensor.
3) Turn the ignition switch to ON.
4) Measure the voltage between yaw rate &
lateral G sensor and chassis ground.
Connector & terminal
(B230) No. 3 (+) — Chassis ground (
−
):
Is the voltage 10 — 15 V?
Go to step 3.
Go to step 2.
2
CHECK OUTPUT VOLTAGE OF VDCCM&H/
U.
Measure the voltage between VDCCM&H/U
and chassis ground.
Connector & terminal
(B310) No. 30 (+) — Chassis ground (
−
):
Is the voltage 10 — 15 V?
Repair the har-
ness between yaw
rate & lateral G
sensor and
VDCCM&H/U.
Go to step 5.
3
CHECK GROUND CIRCUIT OF YAW RATE &
LATERAL G SENSOR.
Measure the resistance between yaw rate &
lateral G sensor and chassis ground.
Connector & terminal
(B230) No. 6 — Chassis ground:
Is the resistance less than 0.5
Ω?
Go to step 6.
Go to step 4.
4
CHECK GROUND CIRCUIT OF VDCCM&H/U.
Measure the resistance between VDCCM&H/U
and chassis ground.
Connector & terminal
(B310) No. 16 — Chassis ground:
Is the resistance less than 0.5
Ω?
Repair the har-
ness between yaw
rate & lateral G
sensor and
VDCCM&H/U.
Go to step 5.
5
CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in con-
nector?
Correct or replace
the connector.
Go to step 9.
6
CHECK HARNESS OF YAW RATE & LATER-
AL G SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from VDCCM&H/
U.
3) Measure the resistance between
VDCCM&H/U and yaw rate & lateral G sensor.
Connector & terminal
(B310) No. 1 — (B230) No. 1:
Is the resistance less than 0.5
Ω?
Go to step 7.
Repair the har-
ness between yaw
rate & lateral G
sensor and
VDCCM&H/U.
7
CHECK GROUND SHORT CIRCUIT OF HAR-
NESS.
Measure the resistance between VDCCM&H/U
and chassis ground.
Connector & terminal
(B310) No. 1 — Chassis ground:
Is the resistance more than 1
M
Ω?
Go to step 8.
Repair the har-
ness between yaw
rate & lateral G
sensor and
VDCCM&H/U.
8
CHECK YAW RATE & LATERAL G SENSOR.
1) Turn the ignition switch to OFF.
2) Install the yaw rate & lateral G sensor to
body.
3) Connect all the connectors.
4) Turn the ignition switch to ON.
5) Measure the voltage between VDCCM&H/
U connector terminals.
Connector & terminal
(B310) No. 1 (+) — No. 16 (
−
):
Is the voltage 2.1 — 2.9 V?
Go to step 9.
Replace the yaw
rate & lateral G
sensor. <Ref. to
VDC-15, Yaw Rate
and Lateral G Sen-
sor.>