User's Manual

35
2nd.
Blink
Code
Diagnostic Trouble
Code Description
Repair Information
20 Maximum Number
of TCV Cycles
Exceeded
Replace all Traction Control Valve (TCV) valves and clear the Diagnostic Trouble Code
(DTC).
22 ESP Sensor Voltage
Out of Range
Incorrect supply voltage is detected for the Bendix
®
SAS‑60
™
and the Yaw Rate sensor.
Verify the proper voltage at sensor connectors. Verify wiring between the Electronic
Control Unit (ECU) and the sensors. Verify the proper output voltage from ECU.
Note: When checking for voltage at YAW/LAS & SAS, the voltage will only be present
momentarily at key ON.
24 HS Feature Lamp
Open or Shorted
to Ground
Verify no continuity between the Hill Start / Hill Start Assist lamp and ground. Verify
continuity between the lamp and the ECU. Check the wiring between the lamp and the
ECU. Check the lamp and the condition of its wiring.
25 HS Feature Solenoid
Open or Shorted
to Ground
The Hill Start / Hill Start Assist solenoid is shorted to ground or has a broken wire. Verify
no continuity between the solenoid and ground. Check for corroded/damaged wiring or
connectors between the ECU and the solenoid.
26 HS Feature Solenoid
Shorted to Voltage
Verify no continuity between the Hill Start / Hill Start Assist Solenoid and voltage. Check
for corroded/damaged wiring or connectors between the ECU and Solenoid.
27 Brake Lamp Input
Mismatch With Brake
Lamp Output
There is a brake lamp input mismatch with the brake lamp output.
28 Air system/
Mechanical
Component
Verify brakes are operating correctly. Verify that there is not over‑braking at one or more
wheel end(s). Check the pneumatic plumbing and the exhaust port of the PCVs, TCVs,
and relay valves and conrm that the air is being exhausted from all brake chambers.
Verify tire sizes on the vehicle match the ABS ECU conguration. Verify wheel speed
sensors and tone ring are properly adjusted and in good condition.
29 Air system/
Mechanical
Component
Verify that the tires are in good condition. Verify that no pneumatic hoses are twisted
or kinked. Verify that the brakes are operating correctly. Verify that the wheel speed
sensor and tone ring are properly adjusted. Verify tire size.
30 ESP Disabled due to
Off Road Mode
Electronic Stability has been disabled due to the vehicle being in the ABS or ATC off
road mode. Cycle ABS Off Road or ATC Mud snow switch.
31 HS Feature Lamp
Shorted to Voltage
Verify that there is no resistance measured between the battery and HSA lamp output
of the ECU. Check the wiring between the ECU and the Hill Start / Hill Start Assist
lamp. Check the lamp and condition of its wiring.
32 I/O 2 or 3 Shorted
High (EC‑80‑ATC)
OR
I/O 2 or 3 shorted
High or Stop Lamp
Output error (ESP
EC‑80)
Check for a short‑circuit condition between voltage and the I/O 2 and I/O 3 circuits.
33 HS Feature Solenoid
Open Circuit
Verify resistance across the Hill Start / Hill Start Assist solenoid. Check the ECU and
HSA solenoid for corroded or damaged wiring and/or connectors.
34 eTrac Valve Solenoid
Shorted to Voltage
Verify the resistance between voltage and the Bendix
®
eTrac
™
solenoid is open. Check
for corroded or damaged wiring or connectors between the ECU and the eTrac solenoid.
35 eTrac Valve Solenoid
Shorted to Ground
Verify the resistance between ground and the Bendix eTrac solenoid is open. Check for
corroded or damaged wiring or connectors between the ECU and the eTrac solenoid.
36 Reserved
Reserved
38 Invalid ABS Warning
Lamp Conguration
Check X1‑12 if pin/wire installed. X2‑12 should have no terminal or connection. ABS
Warning Lamp is controlled via J1939.