TM 5-3805-296-23-1
0039
Table 1. 1589 Turbo Inlet Pressure Sensor Diagnostic Codes.
0039
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
1589-03 Turbo Inlet Air
Pressure Sensor Voltage
Always inspect harness connectors that are involved in the circuit. Poor
Above Normal
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Engine ECM Detects Above Normal Voltage on Turbo Inlet Pressure Sensor
Signal Circuit F714.
POSSIBLE CAUSE
Engine Interface Wring Harness High Resistance, Open, or Shorted.
Turbo Inlet Pressure Sensor.
Engine ECM.
Test Step 1. Test 5-Volt Sensor and
Ground Circuit Function.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector CL-C11
(WP 0012, Figure 55) from turbo
inlet pressure sensor connector
(WP 0012, Figure 54).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
4. Using digital multimeter
Voltage Less Than 4.5 V Proceed to
(WP 0540), test for voltage
Test Step 2.
between connector CL-C11
Voltage 5.0 0.5 V Proceed to Test
terminal 1 and terminal 2
Step 3.
(WP 0012, Figure 55).
Test Step 2. Test Engine Interface
Wiring Harness for High Resistance
or Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Connect jumper wire between
terminal 1 and terminal 2 of
connector CL-C11 (WP 0012,
Figure 55).