TM 5-3805-296-23-1
0039
Table 1. 1589 Turbo Inlet Pressure Sensor Diagnostic Codes Continued.
039
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
7. Using digital multimeter
1589-03 Turbo Inlet Air
Continuity Replace engine interface
(WP 0540), test for continuity
Pressure Sensor Voltage
wiring harness (WP 0211). Replace
between connector CL-C1
Above Normal Continued
basic engine wiring harness (WP 0251).
terminal 15 (WP 0012, Figure 45)
Proceed to Test Step 7.
and all terminals in connector CM-
No Continuity Replace engine ECM
C1 (WP 0012, Figure 30).
(WP 0252).
Proceed to Test Step 7.
Test Step 5.Test Turbo Inlet Pressure
Sensor Signal Circuit Function.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Connect jumper wire between
terminal 3 and terminal 2
of connector CL-C11
(WP 0012, Figure 55).
3. Turn battery disconnect switch to
ON position and start engine
(TM 5-3805-296-10).
1589-4 Turbo Inlet Air Pressure Sen-
4. At MSD, check for active
sor Voltage Below Normal Becomes
diagnostic code 1589-4 Turbo Inlet
Active Replace turbo inlet pressure
Air Pressure Sensor Voltage
sensor (WP 0212).
Below Normal (WP 0008).
Proceed to Test Step 7.
1589-3 Turbo Inlet Air Pressure Sen-
sor Voltage Above Normal Remains
Active Proceed to Test Step 6.
Test Step 6. 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. Do not remove jumper wire from
terminal 3 and terminal 2 of
connector CL-C11
(WP 0012, Figure 55).
3. Disconnect connector CL-C1
(WP 0012, Figure 45) from engine
ECM.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace engine ECM (WP 0252).
between connector CL-C1
Proceed to Test Step 7.
terminal 3 and terminal 15
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 45).
Replace engine interface wiring
harness (WP 0211).
Proceed to Test Step 7.
0039-5