DTC
SH-AWD Indicator Light
Code Description
Diagnostic Trouble Code Chart
DTC
SH-AWD Indicator Light
12-1 ON Lateral/Longitudinal Acceleration Sensor Malfunction 12-2 ON Lateral/Longitudinal Acceleration Sensor Malfunction 12-3 ON Lateral/Longitudinal Acceleration Sensor Malfunction 14-1 ON Lateral/Longitudinal Acceleration Sensor Neutral Position 14-2 ON Lateral/Longitudinal Acceleration Sensor Neutral Position 16-1 ON Steering Angle Sensor Signal 19-1 ON Steering Angle Sensor Circuit (open) 19-2 ON Steering Angle Sensor Circuit (short) 19-3 ON Steering Angle sensor Malfunction 19-4 ON Steering Angle Sensor Circuit 27-1 ON Hypoid Gear Speed Sensor (open or short) 27-2 ON Hypoid Gear Speed Sensor Malfunction 33-1 ON YAW Rate Sensor Malfunction 33-2 ON YAW Rate Sensor Malfunction 33-3 ON YAW Rate Sensor Malfunction 35-4 ON YAW Rate Sensor Neutral Position 35-2 ON YAW Rate Sensor Neutral Position 41-1 ON Loss of Communication with PCM 41-2 ON Loss of Communication with VSA Control Unit 41-3 ON Loss of Communication with Gauge Assembly 42-1 ON Differential Oil Temperature Sensor (open) 42-2 ON Differential Oil Temperature Sensor (short) 43-1 ON Differential Oil Temperature Sensor Circuit 44-11 ON SH-AWD Control Unit 44-12 ON SH-AWD Relay Stuck On 44-21 ON SH-AWD Control Unit 44-31 ON SH-AWD Relay Stuck Off 44-32 ON SH-AWD Control Unit Power Supply Stuck On 44-41 ON Power Supply Stuck Off
until you turn the ignition key off; no DTCs will set for these conditions.
Checking for
Diagnostic Codes
When the SH-AWD Control
Module detects a problem, the SH-AWD control module will light the SH-AWD indicator light. The MIL (malfunction indicator lamp), the D5 indicator lamp, and the ABS lamp may also light. Before accessing the SH-AWD control module to retrieve codes, check
GEARS May/June 2010
Code Description (continued)
44-50 ON SH-AWD Control Unit Power Supply Voltage Low 46-1 ON SH-AWD Control Unit Internal Power Supply (open/short) 52-3 ON Left Clutch Electromagnetic Coil Current Malfunction 53-1 ON Left Clutch Electromagnetic Coil (open) 53-2 ON Left Clutch Electromagnetic Coil (short) 53-3 ON Left Clutch Electromagnetic Coil (open) 53-4 ON Left Clutch Electromagnetic Coil (short) 56-3 ON Right Clutch Electromagnetic Coil Current Malfunction 57-1 ON Right Clutch Electromagnetic Coil (open) 57-2 ON Right Clutch Electromagnetic Coil (short) 57-3 ON Right Clutch Electromagnetic Coil (open) 57-4 ON Right Clutch Electromagnetic Coil (short) 59-1 ON SH-AWD Control Unit Power Supply Monitor Circuit 61-1 ON Shift solenoid Valve (open) 61-2 ON Shift Solenoid valve (short) 74-1 ON One Way Clutch Malfunction 75-1 ON Acceleration Device Malfunction (stuck off) 75-2 ON Acceleration Device Malfunction (stuck on) 76-1 ON Rear Differential Fluid Overheats 77-1 ON Functional Abnormalities in Emission or Auto Trans Sys. 77-2 ON Functional Abnormalities in VSA System 77-3 ON Functional Abnormalities in Gauge Assembly 78-XX ON SH-AWD Control Unit Self Diagnostic Malfunction 81-1 ON Left Search Coil Sensor Malfunction 81-2 ON Left Search Coil Sensor (open or short) 81-3 ON Left Search Coil Sensor Magnetic Flux 82-1 ON Right Search Coil Sensor Malfunction 82-2 ON Right Search Coil Sensor (open or short) 82-3 ON Right Search Coil Sensor Magnetic Flux
Figure 4: SH-AWD Module Code List
for codes in the PCM, Antilock Brake System and the VSA system. Codes in any of these systems must be repaired before attempting to diagnose the SH-AWD system. Codes set in these systems will interfere with SH-AWD system operation. To access the SH-AWD control
module:
• Connect your HDS (Honda Scan Tool) or compatible scan tool to the DLC behind the driver’s lower dash panel.
• Turn the Key on, Engine Off. • Follow the prompts on the scan tool display to access the SH-AWD Control Module.
Once you’ve gained access to the
SH-AWD control module, record and clear the codes listed, test drive the vehicle several times in AWD mode, and recheck for codes. If an AWD sys- tem code resets, diagnose and repair the code or codes as needed. If no codes return, there may be
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