Navistar International DT 466 Diagnostic/Troubleshooting Manual page 312

308 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
Figure 379 APS/IVS circuit diagram
Operational Voltage Checks for APS/IVS Sensor with Breakout Harness (Check with breakout harness
connected to sensor and chassis harness with key-on engine-off.)
• APS test points: (+) A (Green) to (-) B (Black)
• IVS test points: (+) D (White) to (-) B (Black)
Position Voltage
Low idle 0.64 V to 0.66 V
High idle 3.84 V to 3.86 V
Operational Voltage Checks for APS/IVS Sensor with Breakout Box (Check with breakout box
connected [X-4 only] to ECM and chassis harness with key-on engine-off.)
• APS test points: (+) X4–18 to (-) X4–24
• IVS test points: (+) X4–12 to (-) X4–24
Position Voltage
Low idle 0.64 V to 0.66 V
High idle 3.84 V to 3.86 V
APS / IVS Diagnostic Trouble Codes
DTC 131= APS signal voltage was < 0.147 V for more than 0.35 seconds
DTC 132= APS signal voltage was > 4.55 V for more than 0.35 seconds
DTC 133= APS signal in-range fault
DTC 134= APS and IVS disagree
DTC 135= Idle validation switch circuit fault – 50% APS only
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
% APS
0%
98% to 102%
% APS
0%
98% to 102%
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
IVS Voltage Comment
0 V IVS toggles only off
idle
B+
IVS Voltage Comment
0 V IVS toggles only off
idle
B+