Engine Control System (4HK1) 1A-313
6
Measure the resistance of the IP cluster (pin s 13
and 14 of B-105).
Is the resistance within the specified value?
110 to 130 Ω
Go to Step 8 Go to Step 11
7
1. Turn OFF the ignition.
2. Disconnect the VNT control module, EHCU,
body control module (BCM), data recording
module (DRM) harness connector.
3. Turn ON the ignition, with the engine OFF.
4. Connect a DMM between the CAN Low circuit
(pin 13 of B-112) and a known good ground.
5. Connect a DMM between the CAN High circuit
(pin 12 of B-112) and a known good ground.
6. Test the CAN Low and High circuits (which
ever voltage reading did not read within the
specified value) among each component for
an open circuit or high resistance.
7. Repair the circuit(s) or connection(s) as
necessary.
Did you find and correct the condition?
1.5 to 3.5
volts
Go to Step 14 Go to Step 10
8
1. Test the CAN Low and High circuits between
the IP cluster (pins 13 and 14 of B-105) and
the joint connection for an open circuit or high
resistance.
2. Inspect for an intermittent, for poor
connections and corrosion at the harness
connector of the IP cluster (pins 13 and 14 of
B-105).
3. Repair the circuit(s) or connection(s) as
necessary.
Did you find and correct the condition?
—
Go to Step 14
—
9
1. Turn OFF the ignition.
2. Disconnect the TCM harness connector.
3. Inspect for an intermittent, for poor
connections and corrosion at the harness
connector of the TCM (pins 12 and 13 of B-
112).
4. Repair the connection(s) as necessary.
Did you find and correct the condition?
—
Go to Step 14 Go to Step 13
10
1. Turn OFF the ignition.
2. Disconnect the ECM harness connector.
3. Inspect for an intermittent, for poor
connections and corrosion at the harness
connector of the ECM (pins 18 and 37 of J-
14).
4. Repair the connection(s) as necessary.
Did you find and correct the condition?
—
Go to Step 14 Go to Step 12
11
Replace the IP cluster. Refer to Instrument Panel
(IP) Cluster in Section 9E Instrumentation/Driver
Info.
Did you complete the replacement?
—
Go to Step 14
—
Step Action Value(s) Yes No
LG4HKED-WE-0871.book 313 ページ ２００７年１１月２９日 木曜日 午後６時２９分
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